20313113224420 has 12 divisors (see below), whose sum is σ = 42657537771324. Its totient is φ = 8125245289760.

The previous prime is 20313113224381. The next prime is 20313113224433. The reversal of 20313113224420 is 2442231131302.

It can be written as a sum of positive squares in 2 ways, for example, as 6949877332644 + 13363235891776 = 2636262^2 + 3655576^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 507827830591 + ... + 507827830630.

It is an arithmetic number, because the mean of its divisors is an integer number (3554794814277).

Almost surely, 2^{20313113224420} is an apocalyptic number.

20313113224420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20313113224420 is an abundant number, since it is smaller than the sum of its proper divisors (22344424546904).

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

20313113224420 is a wasteful number, since it uses less digits than its factorization.

20313113224420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1015655661230 (or 1015655661228 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 20313113224420 its reverse (2442231131302), we get a palindrome (22755344355722).

The spelling of 20313113224420 in words is "twenty trillion, three hundred thirteen billion, one hundred thirteen million, two hundred twenty-four thousand, four hundred twenty".