23031101 has 4 divisors (see below), whose sum is σ = 23566752. Its totient is φ = 22495452.

The previous prime is 23031091. The next prime is 23031103. The reversal of 23031101 is 10113032.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23031101 is a prime.

It is a super-2 number, since 2×23031101² = 1060863226544402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23031103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 267761 + ... + 267846.

It is an arithmetic number, because the mean of its divisors is an integer number (5891688).

Almost surely, 2^23031101 is an apocalyptic number.

It is an amenable number.

23031101 is a deficient number, since it is larger than the sum of its proper divisors (535651).

23031101 is an equidigital number, since it uses as much as digits as its factorization.

23031101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535650.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 23031101 is about 4799.0729313066. The cubic root of 23031101 is about 284.5148244638.

Adding to 23031101 its reverse (10113032), we get a palindrome (33144133).

It can be divided in two parts, 23031 and 101, that added together give a palindrome (23132).

The spelling of 23031101 in words is "twenty-three million, thirty-one thousand, one hundred one".