2103873156 has 192 divisors, whose sum is σ = 7020625920. Its totient is φ = 528768000.

The previous prime is 2103873143. The next prime is 2103873197. The reversal of 2103873156 is 6513783012.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 2103873156.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 253716 + ... + 261876.

It is an arithmetic number, because the mean of its divisors is an integer number (36565760).

Almost surely, 2^2103873156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2103873156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3510312960).

2103873156 is an abundant number, since it is smaller than the sum of its proper divisors (4916752764).

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

2103873156 is a wasteful number, since it uses less digits than its factorization.

2103873156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8223 (or 8215 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 2103873156 is about 45867.9970785732. The cubic root of 2103873156 is about 1281.3659644680.

The spelling of 2103873156 in words is "two billion, one hundred three million, eight hundred seventy-three thousand, one hundred fifty-six".