131031142223424 has 56 divisors (see below), whose sum is σ = 364933225062240. Its totient is φ = 41378255437824.

The previous prime is 131031142223417. The next prime is 131031142223461. The reversal of 131031142223424 is 424322241130131.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17959308609 + ... + 17959315904.

Almost surely, 2^{131031142223424} is an apocalyptic number.

It is an amenable number.

131031142223424 is an abundant number, since it is smaller than the sum of its proper divisors (233902082838816).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131031142223424 is a wasteful number, since it uses less digits than its factorization.

131031142223424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35918624547 (or 35918624537 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 33.

Adding to 131031142223424 its reverse (424322241130131), we get a palindrome (555353383353555).

The spelling of 131031142223424 in words is "one hundred thirty-one trillion, thirty-one billion, one hundred forty-two million, two hundred twenty-three thousand, four hundred twenty-four".