131630723693 has 8 divisors (see below), whose sum is σ = 151766397888. Its totient is φ = 111827870784.

The previous prime is 131630723671. The next prime is 131630723701. The reversal of 131630723693 is 396327036131.

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

It is not a de Polignac number, because 131630723693 - 2¹⁰ = 131630722669 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131630723293) 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, 83204471 + ... + 83206052.

It is an arithmetic number, because the mean of its divisors is an integer number (18970799736).

Almost surely, 2^131630723693 is an apocalyptic number.

It is an amenable number.

131630723693 is a deficient number, since it is larger than the sum of its proper divisors (20135674195).

131630723693 is a wasteful number, since it uses less digits than its factorization.

131630723693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166410643.

The product of its (nonzero) digits is 367416, while the sum is 44.

The spelling of 131630723693 in words is "one hundred thirty-one billion, six hundred thirty million, seven hundred twenty-three thousand, six hundred ninety-three".