2003121093820 has 96 divisors (see below), whose sum is σ = 5333425896960. Its totient is φ = 613767210240.

The previous prime is 2003121093793. The next prime is 2003121093821. The reversal of 2003121093820 is 283901213002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2003121093821) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10932259 + ... + 11113978.

It is an arithmetic number, because the mean of its divisors is an integer number (55556519760).

Almost surely, 2^{2003121093820} is an apocalyptic number.

2003121093820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2003121093820 is an abundant number, since it is smaller than the sum of its proper divisors (3330304803140).

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

2003121093820 is a wasteful number, since it uses less digits than its factorization.

2003121093820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22046323 (or 22046321 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The spelling of 2003121093820 in words is "two trillion, three billion, one hundred twenty-one million, ninety-three thousand, eight hundred twenty".