131301060204661 has 8 divisors (see below), whose sum is σ = 132463838614680. Its totient is φ = 130138296218112.

The previous prime is 131301060204659. The next prime is 131301060204697. The reversal of 131301060204661 is 166402060103131.

It can be written as a sum of positive squares in 4 ways, for example, as 6573485782161 + 124727574422500 = 2563881^2 + 11168150^2 .

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 131301060204661 - 2¹ = 131301060204659 is a prime.

It is a super-2 number, since 2×131301060204661² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131301060207661) 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, 15109545 + ... + 22156273.

It is an arithmetic number, because the mean of its divisors is an integer number (16557979826835).

Almost surely, 2^{131301060204661} is an apocalyptic number.

It is an amenable number.

131301060204661 is a deficient number, since it is larger than the sum of its proper divisors (1162778410019).

131301060204661 is a wasteful number, since it uses less digits than its factorization.

131301060204661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7211735.

The product of its (nonzero) digits is 15552, while the sum is 34.

The spelling of 131301060204661 in words is "one hundred thirty-one trillion, three hundred one billion, sixty million, two hundred four thousand, six hundred sixty-one".