24321312020 has 24 divisors (see below), whose sum is σ = 51095512104. Its totient is φ = 9724571136.

The previous prime is 24321311983. The next prime is 24321312023. The reversal of 24321312020 is 2021312342.

It can be written as a sum of positive squares in 4 ways, for example, as 11609200516 + 12712111504 = 107746^2 + 112748^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 24321311983 and 24321312001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24321312023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196409 + ... + 295328.

It is an arithmetic number, because the mean of its divisors is an integer number (2128979671).

Almost surely, 2^24321312020 is an apocalyptic number.

24321312020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

24321312020 is an abundant number, since it is smaller than the sum of its proper divisors (26774200084).

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

24321312020 is a wasteful number, since it uses less digits than its factorization.

24321312020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494219 (or 494217 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 24321312020 its reverse (2021312342), we get a palindrome (26342624362).

The spelling of 24321312020 in words is "twenty-four billion, three hundred twenty-one million, three hundred twelve thousand, twenty".