15331213271145 has 32 divisors (see below), whose sum is σ = 25181114010624. Its totient is φ = 7960812350400.

The previous prime is 15331213271117. The next prime is 15331213271183. The reversal of 15331213271145 is 54117231213351.

It is not a de Polignac number, because 15331213271145 - 2⁵ = 15331213271113 is a prime.

It is a super-2 number, since 2×15331213271145² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38013751 + ... + 38414940.

It is an arithmetic number, because the mean of its divisors is an integer number (786909812832).

Almost surely, 2^{15331213271145} is an apocalyptic number.

15331213271145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15331213271145 is a deficient number, since it is larger than the sum of its proper divisors (9849900739479).

15331213271145 is a wasteful number, since it uses less digits than its factorization.

15331213271145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76429053.

The product of its digits is 75600, while the sum is 39.

Adding to 15331213271145 its reverse (54117231213351), we get a palindrome (69448444484496).

The spelling of 15331213271145 in words is "fifteen trillion, three hundred thirty-one billion, two hundred thirteen million, two hundred seventy-one thousand, one hundred forty-five".