131201333123 has 12 divisors (see below), whose sum is σ = 152628170400. Its totient is φ = 112453708752.

The previous prime is 131201333093. The next prime is 131201333141. The reversal of 131201333123 is 321333102131.

It is not a de Polignac number, because 131201333123 - 2²⁴ = 131184555907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131201333623) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1797953 + ... + 1869501.

It is an arithmetic number, because the mean of its divisors is an integer number (12719014200).

Almost surely, 2^131201333123 is an apocalyptic number.

131201333123 is a deficient number, since it is larger than the sum of its proper divisors (21426837277).

131201333123 is an equidigital number, since it uses as much as digits as its factorization.

131201333123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108986 (or 108979 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 131201333123 its reverse (321333102131), we get a palindrome (452534435254).

The spelling of 131201333123 in words is "one hundred thirty-one billion, two hundred one million, three hundred thirty-three thousand, one hundred twenty-three".