2103819500 has 48 divisors (see below), whose sum is σ = 4753213920. Its totient is φ = 812504000.

The previous prime is 2103819481. The next prime is 2103819503. The reversal of 2103819500 is 59183012.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (2103819503) 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, 58046 + ... + 87045.

It is an arithmetic number, because the mean of its divisors is an integer number (99025290).

Almost surely, 2^2103819500 is an apocalyptic number.

2103819500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2103819500 is an abundant number, since it is smaller than the sum of its proper divisors (2649394420).

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

2103819500 is a wasteful number, since it uses less digits than its factorization.

2103819500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145139 (or 145127 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 2103819500 is about 45867.4121790188. The cubic root of 2103819500 is about 1281.3550712959.

The spelling of 2103819500 in words is "two billion, one hundred three million, eight hundred nineteen thousand, five hundred".