131222320402243 has 8 divisors (see below), whose sum is σ = 149970598018560. Its totient is φ = 112474600747080.

The previous prime is 131222320402213. The next prime is 131222320402247. The reversal of 131222320402243 is 342204023222131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131222320402243 - 2¹³ = 131222320394051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131222320402247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138986203 + ... + 139927156.

It is an arithmetic number, because the mean of its divisors is an integer number (18746324752320).

Almost surely, 2^{131222320402243} is an apocalyptic number.

131222320402243 is a deficient number, since it is larger than the sum of its proper divisors (18748277616317).

131222320402243 is an equidigital number, since it uses as much as digits as its factorization.

131222320402243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278980577.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 131222320402243 its reverse (342204023222131), we get a palindrome (473426343624374).

The spelling of 131222320402243 in words is "one hundred thirty-one trillion, two hundred twenty-two billion, three hundred twenty million, four hundred two thousand, two hundred forty-three".