31142402104 has 48 divisors (see below), whose sum is σ = 65062312560. Its totient is φ = 13961692800.

The previous prime is 31142402069. The next prime is 31142402113. The reversal of 31142402104 is 40120424113.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 149692 + ... + 291019.

It is an arithmetic number, because the mean of its divisors is an integer number (1355464845).

Almost surely, 2^31142402104 is an apocalyptic number.

It is an amenable number.

31142402104 is an abundant number, since it is smaller than the sum of its proper divisors (33919910456).

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

31142402104 is a wasteful number, since it uses less digits than its factorization.

31142402104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440812 (or 440797 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 31142402104 its reverse (40120424113), we get a palindrome (71262826217).

The spelling of 31142402104 in words is "thirty-one billion, one hundred forty-two million, four hundred two thousand, one hundred four".