30313122131 has 4 divisors (see below), whose sum is σ = 30379453272. Its totient is φ = 30246790992.

The previous prime is 30313122097. The next prime is 30313122157. The reversal of 30313122131 is 13122131303.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30313122131 - 2¹⁴ = 30313105747 is a prime.

It is a super-2 number, since 2×30313122131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30313122731) 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, 33164885 + ... + 33165798.

It is an arithmetic number, because the mean of its divisors is an integer number (7594863318).

Almost surely, 2^30313122131 is an apocalyptic number.

30313122131 is a deficient number, since it is larger than the sum of its proper divisors (66331141).

30313122131 is an equidigital number, since it uses as much as digits as its factorization.

30313122131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66331140.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 30313122131 its reverse (13122131303), we get a palindrome (43435253434).

The spelling of 30313122131 in words is "thirty billion, three hundred thirteen million, one hundred twenty-two thousand, one hundred thirty-one".