131222042293 has 4 divisors (see below), whose sum is σ = 131230797868. Its totient is φ = 131213286720.

The previous prime is 131222042269. The next prime is 131222042299. The reversal of 131222042293 is 392240222131.

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

It can be written as a sum of positive squares in 2 ways, for example, as 32086482129 + 99135560164 = 179127^2 + 314858^2 .

It is a cyclic number.

It is not a de Polignac number, because 131222042293 - 2¹⁷ = 131221911221 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 (131222042299) 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, 4355268 + ... + 4385293.

It is an arithmetic number, because the mean of its divisors is an integer number (32807699467).

Almost surely, 2^131222042293 is an apocalyptic number.

It is an amenable number.

131222042293 is a deficient number, since it is larger than the sum of its proper divisors (8755575).

131222042293 is an equidigital number, since it uses as much as digits as its factorization.

131222042293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8755574.

The product of its (nonzero) digits is 10368, while the sum is 31.

The spelling of 131222042293 in words is "one hundred thirty-one billion, two hundred twenty-two million, forty-two thousand, two hundred ninety-three".