131514505321 has 6 divisors (see below), whose sum is σ = 132081422270. Its totient is φ = 130950011328.

The previous prime is 131514505303. The next prime is 131514505357. The reversal of 131514505321 is 123505415131.

It can be written as a sum of positive squares in 3 ways, for example, as 2104515625 + 129409989696 = 45875^2 + 359736^2 .

It is not a de Polignac number, because 131514505321 - 2¹¹ = 131514503273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131514505021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1156956 + ... + 1265533.

Almost surely, 2^131514505321 is an apocalyptic number.

It is an amenable number.

131514505321 is a deficient number, since it is larger than the sum of its proper divisors (566916949).

131514505321 is an frugal number, since it uses more digits than its factorization.

131514505321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2422955 (or 2422722 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 31.

The spelling of 131514505321 in words is "one hundred thirty-one billion, five hundred fourteen million, five hundred five thousand, three hundred twenty-one".