202103100420 has 48 divisors (see below), whose sum is σ = 609418582080. Its totient is φ = 49748455296.

The previous prime is 202103100401. The next prime is 202103100421. The reversal of 202103100420 is 24001301202.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 202103100420.

It is not an unprimeable number, because it can be changed into a prime (202103100421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129552490 + ... + 129554049.

It is an arithmetic number, because the mean of its divisors is an integer number (12696220460).

Almost surely, 2^202103100420 is an apocalyptic number.

202103100420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202103100420 is an abundant number, since it is smaller than the sum of its proper divisors (407315481660).

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

202103100420 is a wasteful number, since it uses less digits than its factorization.

202103100420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259106564 (or 259106562 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 202103100420 its reverse (24001301202), we get a palindrome (226104401622).

The spelling of 202103100420 in words is "two hundred two billion, one hundred three million, one hundred thousand, four hundred twenty".