30020556345 has 32 divisors (see below), whose sum is σ = 51738137472. Its totient is φ = 14776376832.

The previous prime is 30020556283. The next prime is 30020556347. The reversal of 30020556345 is 54365502003.

It is not a de Polignac number, because 30020556345 - 2⁸ = 30020556089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30020556347) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1199934 + ... + 1224696.

It is an arithmetic number, because the mean of its divisors is an integer number (1616816796).

Almost surely, 2^30020556345 is an apocalyptic number.

It is an amenable number.

30020556345 is a deficient number, since it is larger than the sum of its proper divisors (21717581127).

30020556345 is a wasteful number, since it uses less digits than its factorization.

30020556345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31001.

The product of its (nonzero) digits is 54000, while the sum is 33.

The spelling of 30020556345 in words is "thirty billion, twenty million, five hundred fifty-six thousand, three hundred forty-five".