100231311 has 4 divisors (see below), whose sum is σ = 133641752. Its totient is φ = 66820872.

The previous prime is 100231253. The next prime is 100231331. The reversal of 100231311 is 113132001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 113132001 = 3 ⋅37710667.

It is not a de Polignac number, because 100231311 - 2¹⁷ = 100100239 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 (100231331) 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, 16705216 + ... + 16705221.

It is an arithmetic number, because the mean of its divisors is an integer number (33410438).

Almost surely, 2^100231311 is an apocalyptic number.

100231311 is a deficient number, since it is larger than the sum of its proper divisors (33410441).

100231311 is an equidigital number, since it uses as much as digits as its factorization.

100231311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33410440.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 100231311 is about 10011.5588696266. The cubic root of 100231311 is about 464.5164912922.

Adding to 100231311 its reverse (113132001), we get a palindrome (213363312).

The spelling of 100231311 in words is "one hundred million, two hundred thirty-one thousand, three hundred eleven".