240023121020 has 24 divisors (see below), whose sum is σ = 504298539024. Its totient is φ = 95961632256.

The previous prime is 240023121011. The next prime is 240023121029. The reversal of 240023121020 is 20121320042.

It is an interprime number because it is at equal distance from previous prime (240023121011) and next prime (240023121029).

It is a super-2 number, since 2×240023121020² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 240023121020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240023121029) 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 7 ways as a sum of consecutive naturals, for example, 2934662 + ... + 3015341.

It is an arithmetic number, because the mean of its divisors is an integer number (21012439126).

Almost surely, 2^240023121020 is an apocalyptic number.

240023121020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240023121020 is an abundant number, since it is smaller than the sum of its proper divisors (264275418004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

240023121020 is a wasteful number, since it uses less digits than its factorization.

240023121020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5952029 (or 5952027 counting only the distinct ones).

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

Adding to 240023121020 its reverse (20121320042), we get a palindrome (260144441062).

The spelling of 240023121020 in words is "two hundred forty billion, twenty-three million, one hundred twenty-one thousand, twenty".