15351125131015 has 4 divisors (see below), whose sum is σ = 18421350157224. Its totient is φ = 12280900104808.

The previous prime is 15351125130947. The next prime is 15351125131039. The reversal of 15351125131015 is 51013152115351.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 15351125131015 - 2¹¹ = 15351125128967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1535112513097 + ... + 1535112513106.

It is an arithmetic number, because the mean of its divisors is an integer number (4605337539306).

Almost surely, 2^{15351125131015} is an apocalyptic number.

15351125131015 is a deficient number, since it is larger than the sum of its proper divisors (3070225026209).

15351125131015 is an equidigital number, since it uses as much as digits as its factorization.

15351125131015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3070225026208.

The product of its (nonzero) digits is 11250, while the sum is 34.

Adding to 15351125131015 its reverse (51013152115351), we get a palindrome (66364277246366).

The spelling of 15351125131015 in words is "fifteen trillion, three hundred fifty-one billion, one hundred twenty-five million, one hundred thirty-one thousand, fifteen".