42531510131 has 16 divisors (see below), whose sum is σ = 47251663200. Its totient is φ = 37956134400.

The previous prime is 42531510121. The next prime is 42531510157. The reversal of 42531510131 is 13101513524.

It is a cyclic number.

It is not a de Polignac number, because 42531510131 - 2²² = 42527315827 is a prime.

It is a super-2 number, since 2×42531510131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42531510131.

It is not an unprimeable number, because it can be changed into a prime (42531510121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 279275 + ... + 403803.

It is an arithmetic number, because the mean of its divisors is an integer number (2953228950).

Almost surely, 2^42531510131 is an apocalyptic number.

42531510131 is a deficient number, since it is larger than the sum of its proper divisors (4720153069).

42531510131 is a wasteful number, since it uses less digits than its factorization.

42531510131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125110.

The product of its (nonzero) digits is 1800, while the sum is 26.

The spelling of 42531510131 in words is "forty-two billion, five hundred thirty-one million, five hundred ten thousand, one hundred thirty-one".