20113253420 has 48 divisors (see below), whose sum is σ = 45517889088. Its totient is φ = 7421372160.

The previous prime is 20113253399. The next prime is 20113253443. The reversal of 20113253420 is 2435231102.

It is an unprimeable number.

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, 367262 + ... + 418458.

It is an arithmetic number, because the mean of its divisors is an integer number (948289356).

Almost surely, 2^20113253420 is an apocalyptic number.

20113253420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20113253420 is an abundant number, since it is smaller than the sum of its proper divisors (25404635668).

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

20113253420 is a wasteful number, since it uses less digits than its factorization.

20113253420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52730 (or 52728 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 20113253420 its reverse (2435231102), we get a palindrome (22548484522).

The spelling of 20113253420 in words is "twenty billion, one hundred thirteen million, two hundred fifty-three thousand, four hundred twenty".