31100442044 has 24 divisors (see below), whose sum is σ = 64345743840. Its totient is φ = 12869148096.

The previous prime is 31100441989. The next prime is 31100442097. The reversal of 31100442044 is 44024400113.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19149707 + ... + 19151330.

It is an arithmetic number, because the mean of its divisors is an integer number (2681072660).

Almost surely, 2^31100442044 is an apocalyptic number.

It is an amenable number.

31100442044 is an abundant number, since it is smaller than the sum of its proper divisors (33245301796).

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

31100442044 is a wasteful number, since it uses less digits than its factorization.

31100442044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38301077 (or 38301075 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 31100442044 its reverse (44024400113), we get a palindrome (75124842157).

The spelling of 31100442044 in words is "thirty-one billion, one hundred million, four hundred forty-two thousand, forty-four".