2003120031000 has 384 divisors, whose sum is σ = 6881616967680. Its totient is φ = 484751520000.

The previous prime is 2003120030987. The next prime is 2003120031091. The reversal of 2003120031000 is 1300213002.

It is a happy number.

It is a super-2 number, since 2×2003120031000² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 220336455 + ... + 220345545.

It is an arithmetic number, because the mean of its divisors is an integer number (17920877520).

Almost surely, 2^{2003120031000} is an apocalyptic number.

2003120031000 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 2003120031000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3440808483840).

2003120031000 is an abundant number, since it is smaller than the sum of its proper divisors (4878496936680).

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

2003120031000 is a wasteful number, since it uses less digits than its factorization.

2003120031000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9744 (or 9719 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 2003120031000 its reverse (1300213002), we get a palindrome (2004420244002).

The spelling of 2003120031000 in words is "two trillion, three billion, one hundred twenty million, thirty-one thousand".