42531002125204 has 12 divisors (see below), whose sum is σ = 74430690856704. Its totient is φ = 21265090451864.

The previous prime is 42531002125099. The next prime is 42531002125301. The reversal of 42531002125204 is 40252120013524.

It is a happy number.

It is a super-2 number, since 2×42531002125204² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102419572 + ... + 102833995.

It is an arithmetic number, because the mean of its divisors is an integer number (6202557571392).

Almost surely, 2^{42531002125204} is an apocalyptic number.

It is an amenable number.

42531002125204 is a deficient number, since it is larger than the sum of its proper divisors (31899688731500).

42531002125204 is a wasteful number, since it uses less digits than its factorization.

42531002125204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205305374 (or 205305372 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 42531002125204 its reverse (40252120013524), we get a palindrome (82783122138728).

The spelling of 42531002125204 in words is "forty-two trillion, five hundred thirty-one billion, two million, one hundred twenty-five thousand, two hundred four".