42043031131432 has 64 divisors (see below), whose sum is σ = 79446043170000. Its totient is φ = 20858105511936.

The previous prime is 42043031131427. The next prime is 42043031131433. The reversal of 42043031131432 is 23413113034024.

It can be written as a sum of positive squares in 8 ways, for example, as 23835349565316 + 18207681566116 = 4882146^2 + 4267046^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42043031131394 and 42043031131403.

It is not an unprimeable number, because it can be changed into a prime (42043031131433) 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, 1467507444 + ... + 1467536092.

Almost surely, 2^{42043031131432} is an apocalyptic number.

It is an amenable number.

42043031131432 is a deficient number, since it is larger than the sum of its proper divisors (37403012038568).

42043031131432 is a wasteful number, since it uses less digits than its factorization.

42043031131432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31598 (or 31594 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 42043031131432 its reverse (23413113034024), we get a palindrome (65456144165456).

The spelling of 42043031131432 in words is "forty-two trillion, forty-three billion, thirty-one million, one hundred thirty-one thousand, four hundred thirty-two".