15312351413 has 2 divisors, whose sum is σ = 15312351414. Its totient is φ = 15312351412.

The previous prime is 15312351403. The next prime is 15312351559. The reversal of 15312351413 is 31415321351.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11783753809 + 3528597604 = 108553^2 + 59402^2 .

It is a cyclic number.

It is not a de Polignac number, because 15312351413 - 2¹² = 15312347317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15312351403) 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, 7656175706 + 7656175707.

It is an arithmetic number, because the mean of its divisors is an integer number (7656175707).

Almost surely, 2^15312351413 is an apocalyptic number.

It is an amenable number.

15312351413 is a deficient number, since it is larger than the sum of its proper divisors (1).

15312351413 is an equidigital number, since it uses as much as digits as its factorization.

15312351413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5400, while the sum is 29.

Adding to 15312351413 its reverse (31415321351), we get a palindrome (46727672764).

The spelling of 15312351413 in words is "fifteen billion, three hundred twelve million, three hundred fifty-one thousand, four hundred thirteen".