24012421020 has 72 divisors (see below), whose sum is σ = 83243063904. Its totient is φ = 5488553088.

The previous prime is 24012421019. The next prime is 24012421021. The reversal of 24012421020 is 2012421042.

24012421020 is a `hidden beast` number, since 2 + 401 + 242 + 1 + 0 + 20 = 666.

It is an interprime number because it is at equal distance from previous prime (24012421019) and next prime (24012421021).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 24012420984 and 24012421002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24012421021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9527479 + ... + 9529998.

Almost surely, 2^24012421020 is an apocalyptic number.

24012421020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

24012421020 is an abundant number, since it is smaller than the sum of its proper divisors (59230642884).

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

24012421020 is a wasteful number, since it uses less digits than its factorization.

24012421020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19057499 (or 19057494 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 24012421020 its reverse (2012421042), we get a palindrome (26024842062).

The spelling of 24012421020 in words is "twenty-four billion, twelve million, four hundred twenty-one thousand, twenty".