31344444042 has 64 divisors (see below), whose sum is σ = 69206814720. Its totient is φ = 9419590656.

The previous prime is 31344444023. The next prime is 31344444097. The reversal of 31344444042 is 24044444313.

It is a junction number, because it is equal to n+sod(n) for n = 31344443994 and 31344444012.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 333948 + ... + 417384.

It is an arithmetic number, because the mean of its divisors is an integer number (1081356480).

Almost surely, 2^31344444042 is an apocalyptic number.

31344444042 is an abundant number, since it is smaller than the sum of its proper divisors (37862370678).

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

31344444042 is a wasteful number, since it uses less digits than its factorization.

31344444042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83615.

The product of its (nonzero) digits is 73728, while the sum is 33.

Adding to 31344444042 its reverse (24044444313), we get a palindrome (55388888355).

The spelling of 31344444042 in words is "thirty-one billion, three hundred forty-four million, four hundred forty-four thousand, forty-two".