30504428831 has 4 divisors (see below), whose sum is σ = 30744621312. Its totient is φ = 30264236352.

The previous prime is 30504428821. The next prime is 30504428879. The reversal of 30504428831 is 13882440503.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13882440503 = 57587 ⋅241069.

It is a cyclic number.

It is not a de Polignac number, because 30504428831 - 2³⁰ = 29430687007 is a prime.

It is a super-2 number, since 2×30504428831² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30504428821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120096050 + ... + 120096303.

It is an arithmetic number, because the mean of its divisors is an integer number (7686155328).

Almost surely, 2^30504428831 is an apocalyptic number.

30504428831 is a deficient number, since it is larger than the sum of its proper divisors (240192481).

30504428831 is a wasteful number, since it uses less digits than its factorization.

30504428831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240192480.

The product of its (nonzero) digits is 92160, while the sum is 38.

The spelling of 30504428831 in words is "thirty billion, five hundred four million, four hundred twenty-eight thousand, eight hundred thirty-one".