131320221323 has 2 divisors, whose sum is σ = 131320221324. Its totient is φ = 131320221322.

The previous prime is 131320221313. The next prime is 131320221341. The reversal of 131320221323 is 323122023131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131320221323 - 2²⁸ = 131051785867 is a prime.

It is not a weakly prime, because it can be changed into another prime (131320221313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65660110661 + 65660110662.

It is an arithmetic number, because the mean of its divisors is an integer number (65660110662).

Almost surely, 2^131320221323 is an apocalyptic number.

131320221323 is a deficient number, since it is larger than the sum of its proper divisors (1).

131320221323 is an equidigital number, since it uses as much as digits as its factorization.

131320221323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 131320221323 its reverse (323122023131), we get a palindrome (454442244454).

The spelling of 131320221323 in words is "one hundred thirty-one billion, three hundred twenty million, two hundred twenty-one thousand, three hundred twenty-three".