100131323 has 4 divisors (see below), whose sum is σ = 100389120. Its totient is φ = 99873528.

The previous prime is 100131313. The next prime is 100131331. The reversal of 100131323 is 323131001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 323131001 = 1051 ⋅307451.

It is a cyclic number.

It is not a de Polignac number, because 100131323 - 2⁸ = 100131067 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100131298 and 100131307.

It is not an unprimeable number, because it can be changed into a prime (100131313) 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, 128315 + ... + 129092.

It is an arithmetic number, because the mean of its divisors is an integer number (25097280).

Almost surely, 2^100131323 is an apocalyptic number.

100131323 is a deficient number, since it is larger than the sum of its proper divisors (257797).

100131323 is an equidigital number, since it uses as much as digits as its factorization.

100131323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257796.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 100131323 is about 10006.5639956980. The cubic root of 100131323 is about 464.3619769411.

Adding to 100131323 its reverse (323131001), we get a palindrome (423262324).

The spelling of 100131323 in words is "one hundred million, one hundred thirty-one thousand, three hundred twenty-three".