23213031233 has 4 divisors (see below), whose sum is σ = 26529178560. Its totient is φ = 19896883908.

The previous prime is 23213031227. The next prime is 23213031239. The reversal of 23213031233 is 33213031232.

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 an interprime number because it is at equal distance from previous prime (23213031227) and next prime (23213031239).

It is a cyclic number.

It is not a de Polignac number, because 23213031233 - 2²⁴ = 23196254017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23213031199 and 23213031208.

It is not an unprimeable number, because it can be changed into a prime (23213031239) 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, 1658073653 + ... + 1658073666.

It is an arithmetic number, because the mean of its divisors is an integer number (6632294640).

Almost surely, 2^23213031233 is an apocalyptic number.

It is an amenable number.

23213031233 is a deficient number, since it is larger than the sum of its proper divisors (3316147327).

23213031233 is an equidigital number, since it uses as much as digits as its factorization.

23213031233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3316147326.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 23213031233 its reverse (33213031232), we get a palindrome (56426062465).

Subtracting 23213031233 from its reverse (33213031232), we obtain a palindrome (9999999999).

The spelling of 23213031233 in words is "twenty-three billion, two hundred thirteen million, thirty-one thousand, two hundred thirty-three".