240120120023 has 4 divisors (see below), whose sum is σ = 274422994320. Its totient is φ = 205817245728.

The previous prime is 240120119977. The next prime is 240120120041. The reversal of 240120120023 is 320021021042.

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 240120120023 - 2⁶ = 240120119959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 240120119983 and 240120120010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240120120043) 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, 17151437138 + ... + 17151437151.

It is an arithmetic number, because the mean of its divisors is an integer number (68605748580).

Almost surely, 2^240120120023 is an apocalyptic number.

240120120023 is a deficient number, since it is larger than the sum of its proper divisors (34302874297).

240120120023 is an equidigital number, since it uses as much as digits as its factorization.

240120120023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34302874296.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 240120120023 its reverse (320021021042), we get a palindrome (560141141065).

The spelling of 240120120023 in words is "two hundred forty billion, one hundred twenty million, one hundred twenty thousand, twenty-three".