131500554121 has 8 divisors (see below), whose sum is σ = 139260587040. Its totient is φ = 123743266368.

The previous prime is 131500554071. The next prime is 131500554137. The reversal of 131500554121 is 121455005131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131500554121 - 2⁹ = 131500553609 is a prime.

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 131500554121.

It is not an unprimeable number, because it can be changed into a prime (131500554161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 587251 + ... + 779656.

It is an arithmetic number, because the mean of its divisors is an integer number (17407573380).

Almost surely, 2^131500554121 is an apocalyptic number.

It is an amenable number.

131500554121 is a deficient number, since it is larger than the sum of its proper divisors (7760032919).

131500554121 is a wasteful number, since it uses less digits than its factorization.

131500554121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1372583.

The product of its (nonzero) digits is 3000, while the sum is 28.

Adding to 131500554121 its reverse (121455005131), we get a palindrome (252955559252).

The spelling of 131500554121 in words is "one hundred thirty-one billion, five hundred million, five hundred fifty-four thousand, one hundred twenty-one".