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120231540231 = 31117415398627
BaseRepresentation
bin110111111111001011…
…0111011011000000111
3102111100010212001222120
41233332112323120013
53432213233241411
6131122243101023
711454310141545
oct1577626733007
9374303761876
10120231540231
1146a9862a790
121b375371773
13b45116571a
145b67db8d95
1531da490106
hex1bfe5bb607

120231540231 has 64 divisors (see below), whose sum is σ = 193266694656. Its totient is φ = 65645465600.

The previous prime is 120231540223. The next prime is 120231540269. The reversal of 120231540231 is 132045132021.

It is not a de Polignac number, because 120231540231 - 23 = 120231540223 is a prime.

It is a super-2 number, since 2×1202315402312 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120231540271) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1169740 + ... + 1268366.

It is an arithmetic number, because the mean of its divisors is an integer number (3019792104).

Almost surely, 2120231540231 is an apocalyptic number.

120231540231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

120231540231 is a deficient number, since it is larger than the sum of its proper divisors (73035154425).

120231540231 is a wasteful number, since it uses less digits than its factorization.

120231540231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98752.

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 120231540231 its reverse (132045132021), we get a palindrome (252276672252).

The spelling of 120231540231 in words is "one hundred twenty billion, two hundred thirty-one million, five hundred forty thousand, two hundred thirty-one".

Divisors: 1 3 11 17 33 41 51 53 123 159 187 451 561 583 697 901 1353 1749 2091 2173 2703 6519 7667 9911 23001 23903 29733 36941 71709 98627 110823 295881 406351 1084897 1219053 1676659 3254691 4043707 5029977 5227231 12131121 15681693 18443249 44480777 55329747 57499541 68743019 88862927 133442331 172498623 206229057 214316471 266588781 642949413 756173209 977492197 2268519627 2357481181 2932476591 3643380007 7072443543 10930140021 40077180077 120231540231