2103431000 has 128 divisors (see below), whose sum is σ = 5495592960. Its totient is φ = 746928000.

The previous prime is 2103430991. The next prime is 2103431017. The reversal of 2103431000 is 1343012.

It is a super-2 number, since 2×2103431000² = 8848843943522000000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 470777 + ... + 475223.

It is an arithmetic number, because the mean of its divisors is an integer number (42934320).

Almost surely, 2^2103431000 is an apocalyptic number.

2103431000 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 2103431000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2747796480).

2103431000 is an abundant number, since it is smaller than the sum of its proper divisors (3392161960).

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

2103431000 is a wasteful number, since it uses less digits than its factorization.

2103431000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4522 (or 4508 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 2103431000 is about 45863.1769505777. The cubic root of 2103431000 is about 1281.2761930001.

Adding to 2103431000 its reverse (1343012), we get a palindrome (2104774012).

The spelling of 2103431000 in words is "two billion, one hundred three million, four hundred thirty-one thousand".