30913030394 has 4 divisors (see below), whose sum is σ = 46369545594. Its totient is φ = 15456515196.

The previous prime is 30913030373. The next prime is 30913030403. The reversal of 30913030394 is 49303031903.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49303031903 = 51257 ⋅961879.

It can be written as a sum of positive squares in only one way, i.e., 30489699769 + 423330625 = 174613^2 + 20575^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7728257597 + ... + 7728257600.

Almost surely, 2^30913030394 is an apocalyptic number.

30913030394 is a deficient number, since it is larger than the sum of its proper divisors (15456515200).

30913030394 is a wasteful number, since it uses less digits than its factorization.

30913030394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15456515199.

The product of its (nonzero) digits is 26244, while the sum is 35.

The spelling of 30913030394 in words is "thirty billion, nine hundred thirteen million, thirty thousand, three hundred ninety-four".