1103203022100 has 72 divisors (see below), whose sum is σ = 3211516637280. Its totient is φ = 292382628480.

The previous prime is 1103203022017. The next prime is 1103203022137. The reversal of 1103203022100 is 12203023011.

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 1103203022100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11231295 + ... + 11329094.

It is an arithmetic number, because the mean of its divisors is an integer number (44604397740).

Almost surely, 2^{1103203022100} is an apocalyptic number.

1103203022100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1103203022100 is an abundant number, since it is smaller than the sum of its proper divisors (2108313615180).

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

1103203022100 is a wasteful number, since it uses less digits than its factorization.

1103203022100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22560569 (or 22560562 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 1103203022100 its reverse (12203023011), we get a palindrome (1115406045111).

The spelling of 1103203022100 in words is "one trillion, one hundred three billion, two hundred three million, twenty-two thousand, one hundred".