30311112131 has 2 divisors, whose sum is σ = 30311112132. Its totient is φ = 30311112130.

The previous prime is 30311112103. The next prime is 30311112137. The reversal of 30311112131 is 13121111303.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30311112131 - 2¹⁴ = 30311095747 is a prime.

It is a super-2 number, since 2×30311112131² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30311112137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15155556065 + 15155556066.

It is an arithmetic number, because the mean of its divisors is an integer number (15155556066).

Almost surely, 2^30311112131 is an apocalyptic number.

30311112131 is a deficient number, since it is larger than the sum of its proper divisors (1).

30311112131 is an equidigital number, since it uses as much as digits as its factorization.

30311112131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 30311112131 its reverse (13121111303), we get a palindrome (43432223434).

The spelling of 30311112131 in words is "thirty billion, three hundred eleven million, one hundred twelve thousand, one hundred thirty-one".