30891703112 has 16 divisors (see below), whose sum is σ = 59790393600. Its totient is φ = 14947598160.

The previous prime is 30891703103. The next prime is 30891703123. The reversal of 30891703112 is 21130719803.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62281412 + ... + 62281907.

It is an arithmetic number, because the mean of its divisors is an integer number (3736899600).

Almost surely, 2^30891703112 is an apocalyptic number.

It is an amenable number.

30891703112 is a deficient number, since it is larger than the sum of its proper divisors (28898690488).

30891703112 is a wasteful number, since it uses less digits than its factorization.

30891703112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124563356 (or 124563352 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 35.

The spelling of 30891703112 in words is "thirty billion, eight hundred ninety-one million, seven hundred three thousand, one hundred twelve".