2003031121400 has 96 divisors (see below), whose sum is σ = 4903842644400. Its totient is φ = 758782080000.

The previous prime is 2003031121363. The next prime is 2003031121417. The reversal of 2003031121400 is 41211303002.

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, 11132150 + ... + 11310650.

Almost surely, 2^{2003031121400} is an apocalyptic number.

2003031121400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2003031121400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2451921322200).

2003031121400 is an abundant number, since it is smaller than the sum of its proper divisors (2900811523000).

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

2003031121400 is a wasteful number, since it uses less digits than its factorization.

2003031121400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181489 (or 181480 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 2003031121400 its reverse (41211303002), we get a palindrome (2044242424402).

The spelling of 2003031121400 in words is "two trillion, three billion, thirty-one million, one hundred twenty-one thousand, four hundred".