2103143240 has 32 divisors (see below), whose sum is σ = 5162261760. Its totient is φ = 764779200.

The previous prime is 2103143227. The next prime is 2103143243. The reversal of 2103143240 is 423413012.

It is a super-2 number, since 2×2103143240² = 8846422975915395200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (2103143243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2389496 + ... + 2390375.

It is an arithmetic number, because the mean of its divisors is an integer number (161320680).

Almost surely, 2^2103143240 is an apocalyptic number.

2103143240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2103143240 is an abundant number, since it is smaller than the sum of its proper divisors (3059118520).

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

2103143240 is a wasteful number, since it uses less digits than its factorization.

2103143240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4779893 (or 4779889 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 2103143240 is about 45860.0396859837. The cubic root of 2103143240 is about 1281.2177619808.

Adding to 2103143240 its reverse (423413012), we get a palindrome (2526556252).

The spelling of 2103143240 in words is "two billion, one hundred three million, one hundred forty-three thousand, two hundred forty".