30644012403 has 12 divisors (see below), whose sum is σ = 44292280240. Its totient is φ = 20416092336.

The previous prime is 30644012401. The next prime is 30644012423. The reversal of 30644012403 is 30421044603.

30644012403 is a `hidden beast` number, since 3 + 0 + 644 + 0 + 12 + 4 + 0 + 3 = 666.

It is not a de Polignac number, because 30644012403 - 2¹ = 30644012401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30644012401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1089448 + ... + 1117221.

Almost surely, 2^30644012403 is an apocalyptic number.

30644012403 is a deficient number, since it is larger than the sum of its proper divisors (13648267837).

30644012403 is a wasteful number, since it uses less digits than its factorization.

30644012403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2208218 (or 2208215 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The spelling of 30644012403 in words is "thirty billion, six hundred forty-four million, twelve thousand, four hundred three".