13015453121 has 4 divisors (see below), whose sum is σ = 14198676144. Its totient is φ = 11832230100.

The previous prime is 13015453103. The next prime is 13015453127. The reversal of 13015453121 is 12135451031.

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 13015453121 - 2⁶ = 13015453057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13015453127) 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, 591611495 + ... + 591611516.

It is an arithmetic number, because the mean of its divisors is an integer number (3549669036).

Almost surely, 2^13015453121 is an apocalyptic number.

13015453121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13015453121 is a deficient number, since it is larger than the sum of its proper divisors (1183223023).

13015453121 is a wasteful number, since it uses less digits than its factorization.

13015453121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1183223022.

The product of its (nonzero) digits is 1800, while the sum is 26.

The spelling of 13015453121 in words is "thirteen billion, fifteen million, four hundred fifty-three thousand, one hundred twenty-one".