30032113021 has 4 divisors (see below), whose sum is σ = 30393945792. Its totient is φ = 29670280252.

The previous prime is 30032112961. The next prime is 30032113043. The reversal of 30032113021 is 12031123003.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30032113021 is a prime.

It is a super-2 number, since 2×30032113021² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30032112986 and 30032113004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30032113091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180916261 + ... + 180916426.

It is an arithmetic number, because the mean of its divisors is an integer number (7598486448).

Almost surely, 2^30032113021 is an apocalyptic number.

It is an amenable number.

30032113021 is a deficient number, since it is larger than the sum of its proper divisors (361832771).

30032113021 is an equidigital number, since it uses as much as digits as its factorization.

30032113021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361832770.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 30032113021 its reverse (12031123003), we get a palindrome (42063236024).

The spelling of 30032113021 in words is "thirty billion, thirty-two million, one hundred thirteen thousand, twenty-one".