131302131121 has 32 divisors (see below), whose sum is σ = 155185632000. Its totient is φ = 111031804800.

The previous prime is 131302131113. The next prime is 131302131137. The reversal of 131302131121 is 121131203131.

It is not a de Polignac number, because 131302131121 - 2³ = 131302131113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131302131151) 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 31 ways as a sum of consecutive naturals, for example, 23028571 + ... + 23034271.

It is an arithmetic number, because the mean of its divisors is an integer number (4849551000).

Almost surely, 2^131302131121 is an apocalyptic number.

It is an amenable number.

131302131121 is a deficient number, since it is larger than the sum of its proper divisors (23883500879).

131302131121 is an frugal number, since it uses more digits than its factorization.

131302131121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6614 (or 6600 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 131302131121 its reverse (121131203131), we get a palindrome (252433334252).

The spelling of 131302131121 in words is "one hundred thirty-one billion, three hundred two million, one hundred thirty-one thousand, one hundred twenty-one".