131923040971 has 8 divisors (see below), whose sum is σ = 135023336624. Its totient is φ = 128824214400.

The previous prime is 131923040959. The next prime is 131923040987. The reversal of 131923040971 is 179040329131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a 7-Lehmer number, since φ(131923040971) divides (131923040971-1)⁷.

It is a cyclic number.

It is not a de Polignac number, because 131923040971 - 2¹⁹ = 131922516683 is a prime.

It is a super-2 number, since 2×131923040971² (a number of 23 digits) contains 22 as substring.

It is a pancake number, because a pancake can be divided into 131923040971 parts by 513659 straight cuts.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131923040911) 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, 184506 + ... + 545791.

It is an arithmetic number, because the mean of its divisors is an integer number (16877917078).

Almost surely, 2^131923040971 is an apocalyptic number.

131923040971 is a deficient number, since it is larger than the sum of its proper divisors (3100295653).

131923040971 is an equidigital number, since it uses as much as digits as its factorization.

131923040971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734541.

The product of its (nonzero) digits is 40824, while the sum is 40.

The spelling of 131923040971 in words is "one hundred thirty-one billion, nine hundred twenty-three million, forty thousand, nine hundred seventy-one".