203113740 has 96 divisors (see below), whose sum is σ = 584801280. Its totient is φ = 52655616.

The previous prime is 203113721. The next prime is 203113763. The reversal of 203113740 is 47311302.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 345727 + ... + 346313.

It is an arithmetic number, because the mean of its divisors is an integer number (6091680).

Almost surely, 2^203113740 is an apocalyptic number.

203113740 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 203113740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (292400640).

203113740 is an abundant number, since it is smaller than the sum of its proper divisors (381687540).

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

203113740 is a wasteful number, since it uses less digits than its factorization.

203113740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751 (or 749 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 203113740 is about 14251.7977813327. The cubic root of 203113740 is about 587.8228097690.

It can be divided in two parts, 20 and 3113740, that added together give a triangular number (3113760 = T₂₄₉₅).

The spelling of 203113740 in words is "two hundred three million, one hundred thirteen thousand, seven hundred forty".