131325646231 has 4 divisors (see below), whose sum is σ = 141427619032. Its totient is φ = 121223673432.

The previous prime is 131325646229. The next prime is 131325646313. The reversal of 131325646231 is 132646523131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131325646231 - 2¹ = 131325646229 is a prime.

It is a super-2 number, since 2×131325646231² (a number of 23 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 (131325643231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5050986381 + ... + 5050986406.

It is an arithmetic number, because the mean of its divisors is an integer number (35356904758).

Almost surely, 2^131325646231 is an apocalyptic number.

131325646231 is a deficient number, since it is larger than the sum of its proper divisors (10101972801).

131325646231 is a wasteful number, since it uses less digits than its factorization.

131325646231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10101972800.

The product of its digits is 77760, while the sum is 37.

The spelling of 131325646231 in words is "one hundred thirty-one billion, three hundred twenty-five million, six hundred forty-six thousand, two hundred thirty-one".