30939693903 has 16 divisors (see below), whose sum is σ = 46290415200. Its totient is φ = 20422238400.

The previous prime is 30939693859. The next prime is 30939693937.

30939693903 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 30939693903 - 2³² = 26644726607 is a prime.

It is a super-2 number, since 2×30939693903² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30939693903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30939693203) 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, 5670118 + ... + 5675571.

It is an arithmetic number, because the mean of its divisors is an integer number (2893150950).

Almost surely, 2^30939693903 is an apocalyptic number.

30939693903 is a deficient number, since it is larger than the sum of its proper divisors (15350721297).

30939693903 is a wasteful number, since it uses less digits than its factorization.

30939693903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11345799 (or 11345793 counting only the distinct ones).

The product of its (nonzero) digits is 3188646, while the sum is 54.

It can be divided in two parts, 3093 and 9693903, that added together give a square (9696996 = 3114²).

The spelling of 30939693903 in words is "thirty billion, nine hundred thirty-nine million, six hundred ninety-three thousand, nine hundred three".