23012320033 has 4 divisors (see below), whose sum is σ = 23805848340. Its totient is φ = 22218791728.

The previous prime is 23012319983. The next prime is 23012320039. The reversal of 23012320033 is 33002321032.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18130083904 + 4882236129 = 134648^2 + 69873^2 .

It is not a de Polignac number, because 23012320033 - 2¹³ = 23012311841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23012320039) 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, 396764110 + ... + 396764167.

It is an arithmetic number, because the mean of its divisors is an integer number (5951462085).

Almost surely, 2^23012320033 is an apocalyptic number.

It is an amenable number.

23012320033 is a deficient number, since it is larger than the sum of its proper divisors (793528307).

23012320033 is an equidigital number, since it uses as much as digits as its factorization.

23012320033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793528306.

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 23012320033 its reverse (33002321032), we get a palindrome (56014641065).

Subtracting 23012320033 from its reverse (33002321032), we obtain a palindrome (9990000999).

The spelling of 23012320033 in words is "twenty-three billion, twelve million, three hundred twenty thousand, thirty-three".