13454521131 has 4 divisors (see below), whose sum is σ = 17939361512. Its totient is φ = 8969680752.

The previous prime is 13454521061. The next prime is 13454521169. The reversal of 13454521131 is 13112545431.

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

It is not a de Polignac number, because 13454521131 - 2⁹ = 13454520619 is a prime.

It is a super-2 number, since 2×13454521131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13454521231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2242420186 + ... + 2242420191.

It is an arithmetic number, because the mean of its divisors is an integer number (4484840378).

Almost surely, 2^13454521131 is an apocalyptic number.

13454521131 is a deficient number, since it is larger than the sum of its proper divisors (4484840381).

13454521131 is an equidigital number, since it uses as much as digits as its factorization.

13454521131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4484840380.

The product of its digits is 7200, while the sum is 30.

The spelling of 13454521131 in words is "thirteen billion, four hundred fifty-four million, five hundred twenty-one thousand, one hundred thirty-one".