9107131638923 has 4 divisors (see below), whose sum is σ = 9642845264760. Its totient is φ = 8571418013088.

The previous prime is 9107131638919. The next prime is 9107131638931. The reversal of 9107131638923 is 3298361317019.

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 9107131638923 - 2² = 9107131638919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9107131638973) 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, 267856812893 + ... + 267856812926.

It is an arithmetic number, because the mean of its divisors is an integer number (2410711316190).

Almost surely, 2^{9107131638923} is an apocalyptic number.

9107131638923 is a deficient number, since it is larger than the sum of its proper divisors (535713625837).

9107131638923 is a wasteful number, since it uses less digits than its factorization.

9107131638923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535713625836.

The product of its (nonzero) digits is 1469664, while the sum is 53.

The spelling of 9107131638923 in words is "nine trillion, one hundred seven billion, one hundred thirty-one million, six hundred thirty-eight thousand, nine hundred twenty-three".