131121322193 has 8 divisors (see below), whose sum is σ = 131199525600. Its totient is φ = 131043149568.

The previous prime is 131121322147. The next prime is 131121322231. The reversal of 131121322193 is 391223121131.

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 131121322193 - 2⁸ = 131121321937 is a prime.

It is a super-2 number, since 2×131121322193² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (131121322093) 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, 21695030 + ... + 21701072.

It is an arithmetic number, because the mean of its divisors is an integer number (16399940700).

Almost surely, 2^131121322193 is an apocalyptic number.

It is an amenable number.

131121322193 is a deficient number, since it is larger than the sum of its proper divisors (78203407).

131121322193 is an equidigital number, since it uses as much as digits as its factorization.

131121322193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15391.

The product of its digits is 1944, while the sum is 29.

The spelling of 131121322193 in words is "one hundred thirty-one billion, one hundred twenty-one million, three hundred twenty-two thousand, one hundred ninety-three".