31000102 has 16 divisors (see below), whose sum is σ = 53551872. Its totient is φ = 13183560.

The previous prime is 31000087. The next prime is 31000127. The reversal of 31000102 is 20100013.

It is a super-2 number, since 2×31000102² = 1922012648020808, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (7).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6618 + ... + 10285.

It is an arithmetic number, because the mean of its divisors is an integer number (3346992).

Almost surely, 2^31000102 is an apocalyptic number.

31000102 is a deficient number, since it is larger than the sum of its proper divisors (22551770).

31000102 is a wasteful number, since it uses less digits than its factorization.

31000102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17043.

The product of its (nonzero) digits is 6, while the sum is 7.

The square root of 31000102 is about 5567.7735226929. The cubic root of 31000102 is about 314.1384097773.

Adding to 31000102 its reverse (20100013), we get a palindrome (51100115).

The spelling of 31000102 in words is "thirty-one million, one hundred two", and thus it is an aban number.