23311320033 has 4 divisors (see below), whose sum is σ = 31081760048. Its totient is φ = 15540880020.

The previous prime is 23311320017. The next prime is 23311320041. The reversal of 23311320033 is 33002311332.

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 not a de Polignac number, because 23311320033 - 2⁴ = 23311320017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23311319991 and 23311320009.

It is not an unprimeable number, because it can be changed into a prime (23311320013) 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, 3885220003 + ... + 3885220008.

It is an arithmetic number, because the mean of its divisors is an integer number (7770440012).

Almost surely, 2^23311320033 is an apocalyptic number.

It is an amenable number.

23311320033 is a deficient number, since it is larger than the sum of its proper divisors (7770440015).

23311320033 is an equidigital number, since it uses as much as digits as its factorization.

23311320033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7770440014.

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 23311320033 its reverse (33002311332), we get a palindrome (56313631365).

The spelling of 23311320033 in words is "twenty-three billion, three hundred eleven million, three hundred twenty thousand, thirty-three".