20313112420 has 48 divisors (see below), whose sum is σ = 45095581440. Its totient is φ = 7664530176.

The previous prime is 20313112403. The next prime is 20313112427. The reversal of 20313112420 is 2421131302.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (20313112427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26172 + ... + 203251.

It is an arithmetic number, because the mean of its divisors is an integer number (939491280).

Almost surely, 2^20313112420 is an apocalyptic number.

20313112420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20313112420 is an abundant number, since it is smaller than the sum of its proper divisors (24782469020).

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

20313112420 is a wasteful number, since it uses less digits than its factorization.

20313112420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229684 (or 229682 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20313112420 its reverse (2421131302), we get a palindrome (22734243722).

The spelling of 20313112420 in words is "twenty billion, three hundred thirteen million, one hundred twelve thousand, four hundred twenty".