1003121013300 has 144 divisors (see below), whose sum is σ = 3461203802112. Its totient is φ = 219315888000.

The previous prime is 1003121013281. The next prime is 1003121013313. The reversal of 1003121013300 is 33101213001.

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 1003121013300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10335976 + ... + 10432575.

Almost surely, 2^{1003121013300} is an apocalyptic number.

1003121013300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1003121013300 is an abundant number, since it is smaller than the sum of its proper divisors (2458082788812).

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

1003121013300 is a wasteful number, since it uses less digits than its factorization.

1003121013300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20768598 (or 20768591 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 1003121013300 its reverse (33101213001), we get a palindrome (1036222226301).

The spelling of 1003121013300 in words is "one trillion, three billion, one hundred twenty-one million, thirteen thousand, three hundred".