131312133211223 has 4 divisors (see below), whose sum is σ = 131315295800208. Its totient is φ = 131308970622240.

The previous prime is 131312133211219. The next prime is 131312133211253. The reversal of 131312133211223 is 322112331213131.

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 131312133211223 - 2² = 131312133211219 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 (131312133211253) 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, 1581232211 + ... + 1581315252.

It is an arithmetic number, because the mean of its divisors is an integer number (32828823950052).

Almost surely, 2^{131312133211223} is an apocalyptic number.

131312133211223 is a deficient number, since it is larger than the sum of its proper divisors (3162588985).

131312133211223 is an equidigital number, since it uses as much as digits as its factorization.

131312133211223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3162588984.

The product of its digits is 3888, while the sum is 29.

Adding to 131312133211223 its reverse (322112331213131), we get a palindrome (453424464424354).

The spelling of 131312133211223 in words is "one hundred thirty-one trillion, three hundred twelve billion, one hundred thirty-three million, two hundred eleven thousand, two hundred twenty-three".