20112202021023 has 56 divisors (see below), whose sum is σ = 36489489621408. Its totient is φ = 10816646418432.

The previous prime is 20112202020997. The next prime is 20112202021027. The reversal of 20112202021023 is 32012020221102.

It is not a de Polignac number, because 20112202021023 - 2¹⁴ = 20112202004639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20112202020987 and 20112202021005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20112202021027) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 115832386 + ... + 116005887.

Almost surely, 2^{20112202021023} is an apocalyptic number.

20112202021023 is a deficient number, since it is larger than the sum of its proper divisors (16377287600385).

20112202021023 is an equidigital number, since it uses as much as digits as its factorization.

20112202021023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231838315 (or 231838300 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 20112202021023 its reverse (32012020221102), we get a palindrome (52124222242125).

The spelling of 20112202021023 in words is "twenty trillion, one hundred twelve billion, two hundred two million, twenty-one thousand, twenty-three".