131203311311 has 16 divisors (see below), whose sum is σ = 137189068800. Its totient is φ = 125328060000.

The previous prime is 131203311269. The next prime is 131203311319. The reversal of 131203311311 is 113113302131.

It is a cyclic number.

It is not a de Polignac number, because 131203311311 - 2⁶ = 131203311247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131203311319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13467080 + ... + 13476818.

It is an arithmetic number, because the mean of its divisors is an integer number (8574316800).

Almost surely, 2^131203311311 is an apocalyptic number.

131203311311 is a deficient number, since it is larger than the sum of its proper divisors (5985757489).

131203311311 is an equidigital number, since it uses as much as digits as its factorization.

131203311311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15350.

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 131203311311 its reverse (113113302131), we get a palindrome (244316613442).

The spelling of 131203311311 in words is "one hundred thirty-one billion, two hundred three million, three hundred eleven thousand, three hundred eleven".