131233730122 has 12 divisors (see below), whose sum is σ = 216372968658. Its totient is φ = 59651695400.

The previous prime is 131233730071. The next prime is 131233730137. The reversal of 131233730122 is 221037332131.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 130263968241 + 969761881 = 360921^2 + 31141^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 271143829 + ... + 271144312.

Almost surely, 2^131233730122 is an apocalyptic number.

131233730122 is a deficient number, since it is larger than the sum of its proper divisors (85139238536).

131233730122 is a wasteful number, since it uses less digits than its factorization.

131233730122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542288165 (or 542288154 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 28.

The spelling of 131233730122 in words is "one hundred thirty-one billion, two hundred thirty-three million, seven hundred thirty thousand, one hundred twenty-two".