131331113121 has 32 divisors (see below), whose sum is σ = 194457150720. Its totient is φ = 78325632000.

The previous prime is 131331113113. The next prime is 131331113201. The reversal of 131331113121 is 121311133131.

It is not a de Polignac number, because 131331113121 - 2³ = 131331113113 is a prime.

It is a super-2 number, since 2×131331113121² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131331163121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30516 + ... + 513413.

It is an arithmetic number, because the mean of its divisors is an integer number (6076785960).

Almost surely, 2^131331113121 is an apocalyptic number.

It is an amenable number.

131331113121 is a deficient number, since it is larger than the sum of its proper divisors (63126037599).

131331113121 is a wasteful number, since it uses less digits than its factorization.

131331113121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544137.

The product of its digits is 162, while the sum is 21.

Adding to 131331113121 its reverse (121311133131), we get a palindrome (252642246252).

The spelling of 131331113121 in words is "one hundred thirty-one billion, three hundred thirty-one million, one hundred thirteen thousand, one hundred twenty-one".