15311052505313 has 16 divisors (see below), whose sum is σ = 15398726016960. Its totient is φ = 15223528152000.

The previous prime is 15311052505289. The next prime is 15311052505321. The reversal of 15311052505313 is 31350525011351.

It is a cyclic number.

It is not a de Polignac number, because 15311052505313 - 2⁶ = 15311052505249 is a prime.

It is a super-3 number, since 3×15311052505313³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15311052505363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1937858663 + ... + 1937866563.

It is an arithmetic number, because the mean of its divisors is an integer number (962420376060).

Almost surely, 2^{15311052505313} is an apocalyptic number.

It is an amenable number.

15311052505313 is a deficient number, since it is larger than the sum of its proper divisors (87673511647).

15311052505313 is a wasteful number, since it uses less digits than its factorization.

15311052505313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15968.

The product of its (nonzero) digits is 33750, while the sum is 35.

Adding to 15311052505313 its reverse (31350525011351), we get a palindrome (46661577516664).

The spelling of 15311052505313 in words is "fifteen trillion, three hundred eleven billion, fifty-two million, five hundred five thousand, three hundred thirteen".