131387633207 has 4 divisors (see below), whose sum is σ = 131405274216. Its totient is φ = 131369992200.

The previous prime is 131387633171. The next prime is 131387633249. The reversal of 131387633207 is 702336783131.

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 131387633207 - 2³² = 127092665911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131387636207) 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, 8809328 + ... + 8824229.

It is an arithmetic number, because the mean of its divisors is an integer number (32851318554).

Almost surely, 2^131387633207 is an apocalyptic number.

131387633207 is a deficient number, since it is larger than the sum of its proper divisors (17641009).

131387633207 is an equidigital number, since it uses as much as digits as its factorization.

131387633207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17641008.

The product of its (nonzero) digits is 381024, while the sum is 44.

The spelling of 131387633207 in words is "one hundred thirty-one billion, three hundred eighty-seven million, six hundred thirty-three thousand, two hundred seven".