31234440442 has 64 divisors (see below), whose sum is σ = 53965630080. Its totient is φ = 13463801856.

The previous prime is 31234440439. The next prime is 31234440451. The reversal of 31234440442 is 24404443213.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3892018 + ... + 3900034.

It is an arithmetic number, because the mean of its divisors is an integer number (843212970).

Almost surely, 2^31234440442 is an apocalyptic number.

31234440442 is a deficient number, since it is larger than the sum of its proper divisors (22731189638).

31234440442 is a wasteful number, since it uses less digits than its factorization.

31234440442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8255.

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 31234440442 its reverse (24404443213), we get a palindrome (55638883655).

The spelling of 31234440442 in words is "thirty-one billion, two hundred thirty-four million, four hundred forty thousand, four hundred forty-two".