131373061261 has 32 divisors (see below), whose sum is σ = 152485804800. Its totient is φ = 112104459264.

The previous prime is 131373061247. The next prime is 131373061301. The reversal of 131373061261 is 162160373131.

It is a cyclic number.

It is not a de Polignac number, because 131373061261 - 2⁵ = 131373061229 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 (131373065261) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3152640 + ... + 3194038.

It is an arithmetic number, because the mean of its divisors is an integer number (4765181400).

Almost surely, 2^131373061261 is an apocalyptic number.

It is an amenable number.

131373061261 is a deficient number, since it is larger than the sum of its proper divisors (21112743539).

131373061261 is a wasteful number, since it uses less digits than its factorization.

131373061261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41685.

The product of its (nonzero) digits is 13608, while the sum is 34.

The spelling of 131373061261 in words is "one hundred thirty-one billion, three hundred seventy-three million, sixty-one thousand, two hundred sixty-one".