12020100023 has 16 divisors (see below), whose sum is σ = 12453682560. Its totient is φ = 11595073536.

The previous prime is 12020100007. The next prime is 12020100041. The reversal of 12020100023 is 32000102021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12020100023 - 2⁴ = 12020100007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12020099977 and 12020100013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020100823) 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, 982661 + ... + 994817.

It is an arithmetic number, because the mean of its divisors is an integer number (778355160).

Almost surely, 2^12020100023 is an apocalyptic number.

12020100023 is a deficient number, since it is larger than the sum of its proper divisors (433582537).

12020100023 is a wasteful number, since it uses less digits than its factorization.

12020100023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12506.

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 12020100023 its reverse (32000102021), we get a palindrome (44020202044).

The spelling of 12020100023 in words is "twelve billion, twenty million, one hundred thousand, twenty-three".