30312502313 has 2 divisors, whose sum is σ = 30312502314. Its totient is φ = 30312502312.

The previous prime is 30312502277. The next prime is 30312502331. The reversal of 30312502313 is 31320521303.

Together with next prime (30312502331) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28680099904 + 1632402409 = 169352^2 + 40403^2 .

It is a cyclic number.

It is not a de Polignac number, because 30312502313 - 2³² = 26017535017 is a prime.

It is not a weakly prime, because it can be changed into another prime (30312502333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15156251156 + 15156251157.

It is an arithmetic number, because the mean of its divisors is an integer number (15156251157).

Almost surely, 2^30312502313 is an apocalyptic number.

It is an amenable number.

30312502313 is a deficient number, since it is larger than the sum of its proper divisors (1).

30312502313 is an equidigital number, since it uses as much as digits as its factorization.

30312502313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 23.

The spelling of 30312502313 in words is "thirty billion, three hundred twelve million, five hundred two thousand, three hundred thirteen".