23312011223 has 4 divisors (see below), whose sum is σ = 23313829728. Its totient is φ = 23310192720.

The previous prime is 23312011207. The next prime is 23312011249. The reversal of 23312011223 is 32211021332.

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 23312011223 - 2⁴ = 23312011207 is a prime.

It is a super-2 number, since 2×23312011223² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23312011195 and 23312011204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23312011273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 889886 + ... + 915707.

It is an arithmetic number, because the mean of its divisors is an integer number (5828457432).

Almost surely, 2^23312011223 is an apocalyptic number.

23312011223 is a deficient number, since it is larger than the sum of its proper divisors (1818505).

23312011223 is a wasteful number, since it uses less digits than its factorization.

23312011223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1818504.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 23312011223 its reverse (32211021332), we get a palindrome (55523032555).

The spelling of 23312011223 in words is "twenty-three billion, three hundred twelve million, eleven thousand, two hundred twenty-three".