202003123020 has 24 divisors (see below), whose sum is σ = 565608744624. Its totient is φ = 53867499456.

The previous prime is 202003123001. The next prime is 202003123111. The reversal of 202003123020 is 20321300202.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1683359299 + ... + 1683359418.

It is an arithmetic number, because the mean of its divisors is an integer number (23567031026).

Almost surely, 2^202003123020 is an apocalyptic number.

202003123020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202003123020 is an abundant number, since it is smaller than the sum of its proper divisors (363605621604).

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

202003123020 is a wasteful number, since it uses less digits than its factorization.

202003123020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3366718729 (or 3366718727 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 202003123020 its reverse (20321300202), we get a palindrome (222324423222).

The spelling of 202003123020 in words is "two hundred two billion, three million, one hundred twenty-three thousand, twenty".