31204312232042 has 8 divisors (see below), whose sum is σ = 46811329366500. Its totient is φ = 15600535776544.

The previous prime is 31204312232039. The next prime is 31204312232047. The reversal of 31204312232042 is 24023221340213.

It can be written as a sum of positive squares in 2 ways, for example, as 26966927034961 + 4237385197081 = 5192969^2 + 2058491^2 .

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 = 31204312231996 and 31204312232014.

It is not an unprimeable number, because it can be changed into a prime (31204312232047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 810145667 + ... + 810184182.

Almost surely, 2^{31204312232042} is an apocalyptic number.

31204312232042 is a deficient number, since it is larger than the sum of its proper divisors (15607017134458).

31204312232042 is a wasteful number, since it uses less digits than its factorization.

31204312232042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1620339480.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 31204312232042 its reverse (24023221340213), we get a palindrome (55227533572255).

The spelling of 31204312232042 in words is "thirty-one trillion, two hundred four billion, three hundred twelve million, two hundred thirty-two thousand, forty-two".