102203110020 has 96 divisors (see below), whose sum is σ = 317301941376. Its totient is φ = 24370329600.

The previous prime is 102203110001. The next prime is 102203110073. The reversal of 102203110020 is 20011302201.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 102203109978 and 102203110005.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1229029 + ... + 1309548.

It is an arithmetic number, because the mean of its divisors is an integer number (3305228556).

Almost surely, 2^102203110020 is an apocalyptic number.

102203110020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102203110020 is an abundant number, since it is smaller than the sum of its proper divisors (215098831356).

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

102203110020 is a wasteful number, since it uses less digits than its factorization.

102203110020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2538661 (or 2538659 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 102203110020 its reverse (20011302201), we get a palindrome (122214412221).

The spelling of 102203110020 in words is "one hundred two billion, two hundred three million, one hundred ten thousand, twenty".