20420023300023 has 64 divisors (see below), whose sum is σ = 29910588456960. Its totient is φ = 12351110428800.

The previous prime is 20420023299989. The next prime is 20420023300049. The reversal of 20420023300023 is 32000332002402.

It is not a de Polignac number, because 20420023300023 - 2⁶ = 20420023299959 is a prime.

It is a super-2 number, since 2×20420023300023² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20420023300073) 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 63 ways as a sum of consecutive naturals, for example, 112255818 + ... + 112437576.

It is an arithmetic number, because the mean of its divisors is an integer number (467352944640).

Almost surely, 2^{20420023300023} is an apocalyptic number.

20420023300023 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

20420023300023 is a deficient number, since it is larger than the sum of its proper divisors (9490565156937).

20420023300023 is a wasteful number, since it uses less digits than its factorization.

20420023300023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182860.

The product of its (nonzero) digits is 1728, while the sum is 21.

Adding to 20420023300023 its reverse (32000332002402), we get a palindrome (52420355302425).

The spelling of 20420023300023 in words is "twenty trillion, four hundred twenty billion, twenty-three million, three hundred thousand, twenty-three".