31042402122 has 32 divisors (see below), whose sum is σ = 65785259520. Its totient is φ = 9737938800.

The previous prime is 31042402073. The next prime is 31042402129. The reversal of 31042402122 is 22120424013.

It is not an unprimeable number, because it can be changed into a prime (31042402129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 884448 + ... + 918875.

It is an arithmetic number, because the mean of its divisors is an integer number (2055789360).

Almost surely, 2^31042402122 is an apocalyptic number.

31042402122 is an abundant number, since it is smaller than the sum of its proper divisors (34742857398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31042402122 is a wasteful number, since it uses less digits than its factorization.

31042402122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1803498.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 31042402122 its reverse (22120424013), we get a palindrome (53162826135).

The spelling of 31042402122 in words is "thirty-one billion, forty-two million, four hundred two thousand, one hundred twenty-two".