30420015983 has 16 divisors (see below), whose sum is σ = 35115465216. Its totient is φ = 25812177120.

The previous prime is 30420015973. The next prime is 30420015991. The reversal of 30420015983 is 38951002403.

It is a cyclic number.

It is not a de Polignac number, because 30420015983 - 2²⁸ = 30151580527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30420015973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2828885 + ... + 2839617.

It is an arithmetic number, because the mean of its divisors is an integer number (2194716576).

Almost surely, 2^30420015983 is an apocalyptic number.

30420015983 is a deficient number, since it is larger than the sum of its proper divisors (4695449233).

30420015983 is a wasteful number, since it uses less digits than its factorization.

30420015983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14774.

The product of its (nonzero) digits is 25920, while the sum is 35.

The spelling of 30420015983 in words is "thirty billion, four hundred twenty million, fifteen thousand, nine hundred eighty-three".