30640111013 has 4 divisors (see below), whose sum is σ = 30640915008. Its totient is φ = 30639307020.

The previous prime is 30640110971. The next prime is 30640111027. The reversal of 30640111013 is 31011104603.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31011104603 = 31 ⋅1000358213.

It is a cyclic number.

It is not a de Polignac number, because 30640111013 - 2³⁴ = 13460241829 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 (30640111213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 341831 + ... + 422052.

It is an arithmetic number, because the mean of its divisors is an integer number (7660228752).

Almost surely, 2^30640111013 is an apocalyptic number.

It is an amenable number.

30640111013 is a deficient number, since it is larger than the sum of its proper divisors (803995).

30640111013 is an equidigital number, since it uses as much as digits as its factorization.

30640111013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803994.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 30640111013 its reverse (31011104603), we get a palindrome (61651215616).

The spelling of 30640111013 in words is "thirty billion, six hundred forty million, one hundred eleven thousand, thirteen".