20122120023 has 32 divisors (see below), whose sum is σ = 28941276672. Its totient is φ = 12390528000.

The previous prime is 20122120021. The next prime is 20122120027. The reversal of 20122120023 is 32002122102.

It is a happy number.

It is not a de Polignac number, because 20122120023 - 2¹ = 20122120021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20122119984 and 20122120011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122120021) 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 31 ways as a sum of consecutive naturals, for example, 623443 + ... + 654923.

It is an arithmetic number, because the mean of its divisors is an integer number (904414896).

Almost surely, 2^20122120023 is an apocalyptic number.

20122120023 is a deficient number, since it is larger than the sum of its proper divisors (8819156649).

20122120023 is a wasteful number, since it uses less digits than its factorization.

20122120023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31735.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 20122120023 its reverse (32002122102), we get a palindrome (52124242125).

The spelling of 20122120023 in words is "twenty billion, one hundred twenty-two million, one hundred twenty thousand, twenty-three".