100203223020 has 24 divisors (see below), whose sum is σ = 280569024624. Its totient is φ = 26720859456.

The previous prime is 100203222991. The next prime is 100203223039. The reversal of 100203223020 is 20322302001.

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, 835026799 + ... + 835026918.

It is an arithmetic number, because the mean of its divisors is an integer number (11690376026).

Almost surely, 2^100203223020 is an apocalyptic number.

100203223020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100203223020 is an abundant number, since it is smaller than the sum of its proper divisors (180365801604).

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

100203223020 is a wasteful number, since it uses less digits than its factorization.

100203223020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1670053729 (or 1670053727 counting only the distinct ones).

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

Adding to 100203223020 its reverse (20322302001), we get a palindrome (120525525021).

The spelling of 100203223020 in words is "one hundred billion, two hundred three million, two hundred twenty-three thousand, twenty".