15231330313 has 2 divisors, whose sum is σ = 15231330314. Its totient is φ = 15231330312.

The previous prime is 15231330311. The next prime is 15231330329. The reversal of 15231330313 is 31303313251.

15231330313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15210782224 + 20548089 = 123332^2 + 4533^2 .

It is a cyclic number.

It is not a de Polignac number, because 15231330313 - 2¹ = 15231330311 is a prime.

Together with 15231330311, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (15231330311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7615665156 + 7615665157.

It is an arithmetic number, because the mean of its divisors is an integer number (7615665157).

Almost surely, 2^15231330313 is an apocalyptic number.

It is an amenable number.

15231330313 is a deficient number, since it is larger than the sum of its proper divisors (1).

15231330313 is an equidigital number, since it uses as much as digits as its factorization.

15231330313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2430, while the sum is 25.

Adding to 15231330313 its reverse (31303313251), we get a palindrome (46534643564).

The spelling of 15231330313 in words is "fifteen billion, two hundred thirty-one million, three hundred thirty thousand, three hundred thirteen".