15310243313 has 2 divisors, whose sum is σ = 15310243314. Its totient is φ = 15310243312.

The previous prime is 15310243309. The next prime is 15310243321. The reversal of 15310243313 is 31334201351.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10307934784 + 5002308529 = 101528^2 + 70727^2 .

It is a cyclic number.

It is not a de Polignac number, because 15310243313 - 2² = 15310243309 is a prime.

It is a super-2 number, since 2×15310243313² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (15310243393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7655121656 + 7655121657.

It is an arithmetic number, because the mean of its divisors is an integer number (7655121657).

Almost surely, 2^15310243313 is an apocalyptic number.

It is an amenable number.

15310243313 is a deficient number, since it is larger than the sum of its proper divisors (1).

15310243313 is an equidigital number, since it uses as much as digits as its factorization.

15310243313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 26.

Adding to 15310243313 its reverse (31334201351), we get a palindrome (46644444664).

The spelling of 15310243313 in words is "fifteen billion, three hundred ten million, two hundred forty-three thousand, three hundred thirteen".