131201131220323 has 4 divisors (see below), whose sum is σ = 131201276333688. Its totient is φ = 131200986106960.

The previous prime is 131201131220273. The next prime is 131201131220359. The reversal of 131201131220323 is 323022131102131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131201131220323 - 2³³ = 131192541285731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131201131220623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71191933 + ... + 73011598.

It is an arithmetic number, because the mean of its divisors is an integer number (32800319083422).

Almost surely, 2^{131201131220323} is an apocalyptic number.

131201131220323 is a deficient number, since it is larger than the sum of its proper divisors (145113365).

131201131220323 is an equidigital number, since it uses as much as digits as its factorization.

131201131220323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145113364.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 131201131220323 its reverse (323022131102131), we get a palindrome (454223262322454).

The spelling of 131201131220323 in words is "one hundred thirty-one trillion, two hundred one billion, one hundred thirty-one million, two hundred twenty thousand, three hundred twenty-three".