30520420250503 has 8 divisors (see below), whose sum is σ = 30781508958720. Its totient is φ = 30259656080640.

The previous prime is 30520420250491. The next prime is 30520420250513. The reversal of 30520420250503 is 30505202402503.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30520420250503 - 2²⁵ = 30520386696071 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 (30520420250513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80945698 + ... + 81321871.

It is an arithmetic number, because the mean of its divisors is an integer number (3847688619840).

Almost surely, 2^{30520420250503} is an apocalyptic number.

30520420250503 is a deficient number, since it is larger than the sum of its proper divisors (261088708217).

30520420250503 is a wasteful number, since it uses less digits than its factorization.

30520420250503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162269177.

The product of its (nonzero) digits is 36000, while the sum is 31.

The spelling of 30520420250503 in words is "thirty trillion, five hundred twenty billion, four hundred twenty million, two hundred fifty thousand, five hundred three".