23031823 has 2 divisors, whose sum is σ = 23031824. Its totient is φ = 23031822.

The previous prime is 23031803. The next prime is 23031859. The reversal of 23031823 is 32813032.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23031823 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23031794 and 23031803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23031803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11515911 + 11515912.

It is an arithmetic number, because the mean of its divisors is an integer number (11515912).

Almost surely, 2^23031823 is an apocalyptic number.

23031823 is a deficient number, since it is larger than the sum of its proper divisors (1).

23031823 is an equidigital number, since it uses as much as digits as its factorization.

23031823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 23031823 is about 4799.1481535789. The cubic root of 23031823 is about 284.5177975097.

Adding to 23031823 its reverse (32813032), we get a palindrome (55844855).

The spelling of 23031823 in words is "twenty-three million, thirty-one thousand, eight hundred twenty-three".