30931689503 has 16 divisors (see below), whose sum is σ = 36449169792. Its totient is φ = 25878204000.

The previous prime is 30931689493. The next prime is 30931689553. The reversal of 30931689503 is 30598613903.

It is not a de Polignac number, because 30931689503 - 2⁴ = 30931689487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30931689553) by changing a digit.

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, 279413 + ... + 374078.

It is an arithmetic number, because the mean of its divisors is an integer number (2278073112).

Almost surely, 2^30931689503 is an apocalyptic number.

30931689503 is a deficient number, since it is larger than the sum of its proper divisors (5517480289).

30931689503 is a wasteful number, since it uses less digits than its factorization.

30931689503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653846.

The product of its (nonzero) digits is 524880, while the sum is 47.

The spelling of 30931689503 in words is "thirty billion, nine hundred thirty-one million, six hundred eighty-nine thousand, five hundred three".