23024020111021 has 6 divisors (see below), whose sum is σ = 24299589092622. Its totient is φ = 21812229578520.

The previous prime is 23024020110997. The next prime is 23024020111031. The reversal of 23024020111021 is 12011102042032.

It can be written as a sum of positive squares in only one way, i.e., 20779566688521 + 2244453422500 = 4558461^2 + 1498150^2 .

It is not a de Polignac number, because 23024020111021 - 2⁷ = 23024020110893 is a prime.

It is a super-2 number, since 2×23024020111021² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23024020111021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23024020111031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31889224170 + ... + 31889224891.

It is an arithmetic number, because the mean of its divisors is an integer number (4049931515437).

Almost surely, 2^{23024020111021} is an apocalyptic number.

It is an amenable number.

23024020111021 is a deficient number, since it is larger than the sum of its proper divisors (1275568981601).

23024020111021 is an equidigital number, since it uses as much as digits as its factorization.

23024020111021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63778449099 (or 63778449080 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 23024020111021 its reverse (12011102042032), we get a palindrome (35035122153053).

The spelling of 23024020111021 in words is "twenty-three trillion, twenty-four billion, twenty million, one hundred eleven thousand, twenty-one".