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120012113331 = 32111511802279
BaseRepresentation
bin110111111000101000…
…1111000010110110011
3102110202211222000212100
41233301101320112303
53431241100111311
6131044404031443
711446004063145
oct1576121702663
9373684860770
10120012113331
1146995789040
121b313992583
13b417868b16
145b46bbac95
1531c6099a56
hex1bf14785b3

120012113331 has 24 divisors (see below), whose sum is σ = 189235388160. Its totient is φ = 72686386800.

The previous prime is 120012113329. The next prime is 120012113357. The reversal of 120012113331 is 133311210021.

120012113331 is a `hidden beast` number, since 1 + 200 + 121 + 13 + 331 = 666.

It is not a de Polignac number, because 120012113331 - 21 = 120012113329 is a prime.

It is a super-2 number, since 2×1200121133312 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (120012113371) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 251551 + ... + 550728.

It is an arithmetic number, because the mean of its divisors is an integer number (7884807840).

Almost surely, 2120012113331 is an apocalyptic number.

120012113331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

120012113331 is a deficient number, since it is larger than the sum of its proper divisors (69223274829).

120012113331 is a wasteful number, since it uses less digits than its factorization.

120012113331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803807 (or 803804 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 120012113331 its reverse (133311210021), we get a palindrome (253323323352).

The spelling of 120012113331 in words is "one hundred twenty billion, twelve million, one hundred thirteen thousand, three hundred thirty-one".

Divisors: 1 3 9 11 33 99 1511 4533 13599 16621 49863 149589 802279 2406837 7220511 8825069 26475207 79425621 1212243569 3636730707 10910192121 13334679259 40004037777 120012113331