30313313131 has 2 divisors, whose sum is σ = 30313313132. Its totient is φ = 30313313130.

The previous prime is 30313313119. The next prime is 30313313137. The reversal of 30313313131 is 13131331303.

It is a strong prime.

It is an emirp because it is prime and its reverse (13131331303) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30313313131 - 2⁹ = 30313312619 is a prime.

It is a super-2 number, since 2×30313313131² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30313313137) 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 as a sum of consecutive naturals, namely, 15156656565 + 15156656566.

It is an arithmetic number, because the mean of its divisors is an integer number (15156656566).

Almost surely, 2^30313313131 is an apocalyptic number.

30313313131 is a deficient number, since it is larger than the sum of its proper divisors (1).

30313313131 is an equidigital number, since it uses as much as digits as its factorization.

30313313131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 729, while the sum is 22.

Adding to 30313313131 its reverse (13131331303), we get a palindrome (43444644434).

The spelling of 30313313131 in words is "thirty billion, three hundred thirteen million, three hundred thirteen thousand, one hundred thirty-one".