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2120232110031 = 3271171205313999
BaseRepresentation
bin11110110110100111101…
…011101000011111001111
321111200200121202212120100
4132312213223220133033
5234214213410010111
64302004324222143
7306116220402060
oct36664753503717
97450617685510
102120232110031
1174820482a682
122a2ab953a953
13124c24869249
1474896976567
153a243531756
hex1eda7ae87cf

2120232110031 has 48 divisors (see below), whose sum is σ = 3505011328000. Its totient is φ = 1209850499520.

The previous prime is 2120232109979. The next prime is 2120232110039. The reversal of 2120232110031 is 1300112320212.

2120232110031 is a `hidden beast` number, since 212 + 0 + 2 + 321 + 100 + 31 = 666.

It is not a de Polignac number, because 2120232110031 - 27 = 2120232109903 is a prime.

It is a super-2 number, since 2×21202321100312 (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2120232109986 and 2120232110013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120232110039) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 151448970 + ... + 151462968.

Almost surely, 22120232110031 is an apocalyptic number.

2120232110031 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2120232110031 is a deficient number, since it is larger than the sum of its proper divisors (1384779217969).

2120232110031 is a wasteful number, since it uses less digits than its factorization.

2120232110031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17236 (or 17233 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 2120232110031 its reverse (1300112320212), we get a palindrome (3420344430243).

The spelling of 2120232110031 in words is "two trillion, one hundred twenty billion, two hundred thirty-two million, one hundred ten thousand, thirty-one".

Divisors: 1 3 7 9 21 63 1171 2053 3513 6159 8197 10539 13999 14371 18477 24591 41997 43113 73773 97993 125991 129339 293979 881937 2404063 7212189 16392829 16828441 21636567 28739947 49178487 50485323 86219841 114749803 147535461 151455969 201179629 258659523 344249409 603538887 1032748227 1810616661 33654477937 100963433811 235581345559 302890301433 706744036677 2120232110031