20123023021233 has 16 divisors (see below), whose sum is σ = 29269958224896. Its totient is φ = 12195727129040.

The previous prime is 20123023021207. The next prime is 20123023021237. The reversal of 20123023021233 is 33212032032102.

It is a cyclic number.

It is not a de Polignac number, because 20123023021233 - 2¹⁸ = 20123022759089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20123023021237) 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 15 ways as a sum of consecutive naturals, for example, 9648316 + ... + 11547122.

It is an arithmetic number, because the mean of its divisors is an integer number (1829372389056).

Almost surely, 2^{20123023021233} is an apocalyptic number.

It is an amenable number.

20123023021233 is a deficient number, since it is larger than the sum of its proper divisors (9146935203663).

20123023021233 is a wasteful number, since it uses less digits than its factorization.

20123023021233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2219964.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 20123023021233 its reverse (33212032032102), we get a palindrome (53335055053335).

The spelling of 20123023021233 in words is "twenty trillion, one hundred twenty-three billion, twenty-three million, twenty-one thousand, two hundred thirty-three".