2002031000 has 64 divisors (see below), whose sum is σ = 4691381760. Its totient is φ = 799680000.

The previous prime is 2002030999. The next prime is 2002031033. The reversal of 2002031000 is 1302002.

It is a super-2 number, since 2×2002031000² = 8016256249922000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a congruent number.

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, 1360265 + ... + 1361735.

It is an arithmetic number, because the mean of its divisors is an integer number (73302840).

Almost surely, 2^2002031000 is an apocalyptic number.

2002031000 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 2002031000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2345690880).

2002031000 is an abundant number, since it is smaller than the sum of its proper divisors (2689350760).

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

2002031000 is a wasteful number, since it uses less digits than its factorization.

2002031000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2853 (or 2839 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 2002031000 is about 44744.0610584243. The cubic root of 2002031000 is about 1260.3473888871.

Adding to 2002031000 its reverse (1302002), we get a palindrome (2003333002).

The spelling of 2002031000 in words is "two billion, two million, thirty-one thousand".