131331421252345 has 32 divisors (see below), whose sum is σ = 162803042408448. Its totient is φ = 101629459726848.

The previous prime is 131331421252321. The next prime is 131331421252397. The reversal of 131331421252345 is 543252124133131.

It is a cyclic number.

It is not a de Polignac number, because 131331421252345 - 2²³ = 131331412863737 is a prime.

It is a super-3 number, since 3×131331421252345³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131331421252298 and 131331421252307.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25534392 + ... + 30243478.

It is an arithmetic number, because the mean of its divisors is an integer number (5087595075264).

Almost surely, 2^{131331421252345} is an apocalyptic number.

It is an amenable number.

131331421252345 is a deficient number, since it is larger than the sum of its proper divisors (31471621156103).

131331421252345 is a wasteful number, since it uses less digits than its factorization.

131331421252345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4710009.

The product of its digits is 259200, while the sum is 40.

Adding to 131331421252345 its reverse (543252124133131), we get a palindrome (674583545385476).

The spelling of 131331421252345 in words is "one hundred thirty-one trillion, three hundred thirty-one billion, four hundred twenty-one million, two hundred fifty-two thousand, three hundred forty-five".