1103203331020 has 48 divisors (see below), whose sum is σ = 2655063290880. Its totient is φ = 377187528384.

The previous prime is 1103203331003. The next prime is 1103203331051. The reversal of 1103203331020 is 201333023011.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10924704 + ... + 11025223.

It is an arithmetic number, because the mean of its divisors is an integer number (55313818560).

Almost surely, 2^{1103203331020} is an apocalyptic number.

1103203331020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1103203331020 is an abundant number, since it is smaller than the sum of its proper divisors (1551859959860).

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

1103203331020 is a wasteful number, since it uses less digits than its factorization.

1103203331020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21950302 (or 21950300 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 1103203331020 its reverse (201333023011), we get a palindrome (1304536354031).

The spelling of 1103203331020 in words is "one trillion, one hundred three billion, two hundred three million, three hundred thirty-one thousand, twenty".