23120021033 has 2 divisors, whose sum is σ = 23120021034. Its totient is φ = 23120021032.

The previous prime is 23120021011. The next prime is 23120021039. The reversal of 23120021033 is 33012002132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19811125504 + 3308895529 = 140752^2 + 57523^2 .

It is a cyclic number.

It is not a de Polignac number, because 23120021033 - 2¹² = 23120016937 is a prime.

It is a super-3 number, since 3×23120021033³ (a number of 32 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (23120021039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11560010516 + 11560010517.

It is an arithmetic number, because the mean of its divisors is an integer number (11560010517).

Almost surely, 2^23120021033 is an apocalyptic number.

It is an amenable number.

23120021033 is a deficient number, since it is larger than the sum of its proper divisors (1).

23120021033 is an equidigital number, since it uses as much as digits as its factorization.

23120021033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 23120021033 its reverse (33012002132), we get a palindrome (56132023165).

The spelling of 23120021033 in words is "twenty-three billion, one hundred twenty million, twenty-one thousand, thirty-three".