131621641171 has 8 divisors (see below), whose sum is σ = 134878270464. Its totient is φ = 128367218880.

The previous prime is 131621641159. The next prime is 131621641199. The reversal of 131621641171 is 171146126131.

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 131621641171 - 2²⁵ = 131588086739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131621641141) 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, 430675 + ... + 669868.

It is an arithmetic number, because the mean of its divisors is an integer number (16859783808).

Almost surely, 2^131621641171 is an apocalyptic number.

131621641171 is a deficient number, since it is larger than the sum of its proper divisors (3256629293).

131621641171 is a wasteful number, since it uses less digits than its factorization.

131621641171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1103501.

The product of its digits is 6048, while the sum is 34.

The spelling of 131621641171 in words is "one hundred thirty-one billion, six hundred twenty-one million, six hundred forty-one thousand, one hundred seventy-one".