30281492723 has 12 divisors (see below), whose sum is σ = 31238997768. Its totient is φ = 29351256480.

The previous prime is 30281492671. The next prime is 30281492753. The reversal of 30281492723 is 32729418203.

It is not a de Polignac number, because 30281492723 - 2³² = 25986525427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30281492753) 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, 179711 + ... + 304727.

It is an arithmetic number, because the mean of its divisors is an integer number (2603249814).

Almost surely, 2^30281492723 is an apocalyptic number.

30281492723 is a deficient number, since it is larger than the sum of its proper divisors (957505045).

30281492723 is a wasteful number, since it uses less digits than its factorization.

30281492723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125234 (or 125191 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 41.

The spelling of 30281492723 in words is "thirty billion, two hundred eighty-one million, four hundred ninety-two thousand, seven hundred twenty-three".