131345421141321 has 12 divisors (see below), whose sum is σ = 196263272970180. Its totient is φ = 84544179125280.

The previous prime is 131345421141299. The next prime is 131345421141391. The reversal of 131345421141321 is 123141124543131.

131345421141321 is a `hidden beast` number, since 1 + 3 + 1 + 3 + 4 + 5 + 4 + 211 + 413 + 21 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 94461662901321 + 36883758240000 = 9719139^2 + 6073200^2 .

It is not a de Polignac number, because 131345421141321 - 2⁵ = 131345421141289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131345421141391) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 251619580470 + ... + 251619580991.

It is an arithmetic number, because the mean of its divisors is an integer number (16355272747515).

Almost surely, 2^{131345421141321} is an apocalyptic number.

It is an amenable number.

131345421141321 is a deficient number, since it is larger than the sum of its proper divisors (64917851828859).

131345421141321 is a wasteful number, since it uses less digits than its factorization.

131345421141321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503239161496 (or 503239161493 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

Adding to 131345421141321 its reverse (123141124543131), we get a palindrome (254486545684452).

The spelling of 131345421141321 in words is "one hundred thirty-one trillion, three hundred forty-five billion, four hundred twenty-one million, one hundred forty-one thousand, three hundred twenty-one".