131233012331 has 8 divisors (see below), whose sum is σ = 138841235280. Its totient is φ = 123694911648.

The previous prime is 131233012321. The next prime is 131233012343. The reversal of 131233012331 is 133210332131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131233012331 - 2²² = 131228818027 is a prime.

It is a super-2 number, since 2×131233012331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131233012297 and 131233012306.

It is not an unprimeable number, because it can be changed into a prime (131233012321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17526716 + ... + 17534201.

It is an arithmetic number, because the mean of its divisors is an integer number (17355154410).

Almost surely, 2^131233012331 is an apocalyptic number.

131233012331 is a deficient number, since it is larger than the sum of its proper divisors (7608222949).

131233012331 is a wasteful number, since it uses less digits than its factorization.

131233012331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35061133.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 131233012331 its reverse (133210332131), we get a palindrome (264443344462).

The spelling of 131233012331 in words is "one hundred thirty-one billion, two hundred thirty-three million, twelve thousand, three hundred thirty-one".