131402304332221 has 8 divisors (see below), whose sum is σ = 141527391455520. Its totient is φ = 121279676860272.

The previous prime is 131402304332179. The next prime is 131402304332249. The reversal of 131402304332221 is 122233403204131.

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 131402304332221 - 2⁷ = 131402304332093 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 (131402304332261) 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, 614801875 + ... + 615015568.

It is an arithmetic number, because the mean of its divisors is an integer number (17690923931940).

Almost surely, 2^{131402304332221} is an apocalyptic number.

It is an amenable number.

131402304332221 is a deficient number, since it is larger than the sum of its proper divisors (10125087123299).

131402304332221 is a wasteful number, since it uses less digits than its factorization.

131402304332221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1229825675.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 131402304332221 its reverse (122233403204131), we get a palindrome (253635707536352).

The spelling of 131402304332221 in words is "one hundred thirty-one trillion, four hundred two billion, three hundred four million, three hundred thirty-two thousand, two hundred twenty-one".