20240400120023 has 4 divisors (see below), whose sum is σ = 20248705580040. Its totient is φ = 20232094660008.

The previous prime is 20240400119981. The next prime is 20240400120079. The reversal of 20240400120023 is 32002100404202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20240400120023 - 2¹⁸ = 20240399857879 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20240400119977 and 20240400120004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20240400123023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4152726353 + ... + 4152731226.

It is an arithmetic number, because the mean of its divisors is an integer number (5062176395010).

Almost surely, 2^{20240400120023} is an apocalyptic number.

20240400120023 is a deficient number, since it is larger than the sum of its proper divisors (8305460017).

20240400120023 is an equidigital number, since it uses as much as digits as its factorization.

20240400120023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8305460016.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 20240400120023 its reverse (32002100404202), we get a palindrome (52242500524225).

The spelling of 20240400120023 in words is "twenty trillion, two hundred forty billion, four hundred million, one hundred twenty thousand, twenty-three".