31142444444 has 12 divisors (see below), whose sum is σ = 55245843744. Its totient is φ = 15357917664.

The previous prime is 31142444413. The next prime is 31142444467. The reversal of 31142444444 is 44444424113.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53325812 + ... + 53326395.

It is an arithmetic number, because the mean of its divisors is an integer number (4603820312).

Almost surely, 2^31142444444 is an apocalyptic number.

It is an amenable number.

31142444444 is a deficient number, since it is larger than the sum of its proper divisors (24103399300).

31142444444 is a wasteful number, since it uses less digits than its factorization.

31142444444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106652284 (or 106652282 counting only the distinct ones).

The product of its digits is 98304, while the sum is 35.

Adding to 31142444444 its reverse (44444424113), we get a palindrome (75586868557).

The spelling of 31142444444 in words is "thirty-one billion, one hundred forty-two million, four hundred forty-four thousand, four hundred forty-four".