131320402355 has 8 divisors (see below), whose sum is σ = 157590472272. Its totient is φ = 105052328928.

The previous prime is 131320402351. The next prime is 131320402379. The reversal of 131320402355 is 553204023131.

It is a happy number.

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 131320402355 - 2² = 131320402351 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131320402351) 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, 350384 + ... + 620813.

It is an arithmetic number, because the mean of its divisors is an integer number (19698809034).

Almost surely, 2^131320402355 is an apocalyptic number.

131320402355 is a deficient number, since it is larger than the sum of its proper divisors (26270069917).

131320402355 is an equidigital number, since it uses as much as digits as its factorization.

131320402355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 998245.

The product of its (nonzero) digits is 10800, while the sum is 29.

Adding to 131320402355 its reverse (553204023131), we get a palindrome (684524425486).

The spelling of 131320402355 in words is "one hundred thirty-one billion, three hundred twenty million, four hundred two thousand, three hundred fifty-five".