31107049428 has 48 divisors (see below), whose sum is σ = 89333068160. Its totient is φ = 8204056704.

The previous prime is 31107049427. The next prime is 31107049439. The reversal of 31107049428 is 82494070113.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31107049427) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 14242063 + ... + 14244246.

Almost surely, 2^31107049428 is an apocalyptic number.

It is an amenable number.

31107049428 is an abundant number, since it is smaller than the sum of its proper divisors (58226018732).

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

31107049428 is a wasteful number, since it uses less digits than its factorization.

31107049428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28486336 (or 28486334 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The spelling of 31107049428 in words is "thirty-one billion, one hundred seven million, forty-nine thousand, four hundred twenty-eight".