2003131000 has 64 divisors (see below), whose sum is σ = 5047922880. Its totient is φ = 739612800.

The previous prime is 2003130991. The next prime is 2003131001. The reversal of 2003131000 is 1313002.

It is a super-2 number, since 2×2003131000² = 8025067606322000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2003131001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64044 + ... + 90043.

It is an arithmetic number, because the mean of its divisors is an integer number (78873795).

Almost surely, 2^2003131000 is an apocalyptic number.

2003131000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2003131000 is an abundant number, since it is smaller than the sum of its proper divisors (3044791880).

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

2003131000 is a wasteful number, since it uses less digits than its factorization.

2003131000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154121 (or 154107 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 2003131000 is about 44756.3515045630. The cubic root of 2003131000 is about 1260.5781759050.

Adding to 2003131000 its reverse (1313002), we get a palindrome (2004444002).

The spelling of 2003131000 in words is "two billion, three million, one hundred thirty-one thousand".