31202432042 has 8 divisors (see below), whose sum is σ = 46821139716. Its totient is φ = 15595385472.

The previous prime is 31202432039. The next prime is 31202432083. The reversal of 31202432042 is 24023420213.

It can be written as a sum of positive squares in 2 ways, for example, as 26448191641 + 4754240401 = 162629^2 + 68951^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 31202431999 and 31202432017.

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, 2908583 + ... + 2919290.

Almost surely, 2^31202432042 is an apocalyptic number.

31202432042 is a deficient number, since it is larger than the sum of its proper divisors (15618707674).

31202432042 is a wasteful number, since it uses less digits than its factorization.

31202432042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5830552.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 31202432042 its reverse (24023420213), we get a palindrome (55225852255).

The spelling of 31202432042 in words is "thirty-one billion, two hundred two million, four hundred thirty-two thousand, forty-two".