15121543932941 has 4 divisors (see below), whose sum is σ = 15779002364832. Its totient is φ = 14464085501052.

The previous prime is 15121543932883. The next prime is 15121543932949. The reversal of 15121543932941 is 14923934512151.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 15121543932941 - 2²² = 15121539738637 is a prime.

It is a super-2 number, since 2×15121543932941² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15121543932941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15121543932949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 328729215911 + ... + 328729215956.

It is an arithmetic number, because the mean of its divisors is an integer number (3944750591208).

Almost surely, 2^{15121543932941} is an apocalyptic number.

It is an amenable number.

15121543932941 is a deficient number, since it is larger than the sum of its proper divisors (657458431891).

15121543932941 is an equidigital number, since it uses as much as digits as its factorization.

15121543932941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657458431890.

The product of its digits is 1166400, while the sum is 50.

The spelling of 15121543932941 in words is "fifteen trillion, one hundred twenty-one billion, five hundred forty-three million, nine hundred thirty-two thousand, nine hundred forty-one".