31101108628 has 48 divisors (see below), whose sum is σ = 56001274560. Its totient is φ = 15105049344.

The previous prime is 31101108589. The next prime is 31101108641. The reversal of 31101108628 is 82680110113.

It is a self number, because there is not a number n which added to its sum of digits gives 31101108628.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38443488 + ... + 38444296.

It is an arithmetic number, because the mean of its divisors is an integer number (1166693220).

Almost surely, 2^31101108628 is an apocalyptic number.

It is an amenable number.

31101108628 is a deficient number, since it is larger than the sum of its proper divisors (24900165932).

31101108628 is a wasteful number, since it uses less digits than its factorization.

31101108628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1816 (or 1814 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 31.

The spelling of 31101108628 in words is "thirty-one billion, one hundred one million, one hundred eight thousand, six hundred twenty-eight".