2303505243 has 32 divisors (see below), whose sum is σ = 3678857280. Its totient is φ = 1416096000.

The previous prime is 2303505229. The next prime is 2303505271. The reversal of 2303505243 is 3425053032.

2303505243 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2303505243 - 2²² = 2299310939 is a prime.

It is a super-2 number, since 2×2303505243² = 10612272809056978098, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2303505143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 415993 + ... + 421493.

It is an arithmetic number, because the mean of its divisors is an integer number (114964290).

Almost surely, 2^2303505243 is an apocalyptic number.

2303505243 is a deficient number, since it is larger than the sum of its proper divisors (1375352037).

2303505243 is a wasteful number, since it uses less digits than its factorization.

2303505243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6716 (or 6710 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 27.

The square root of 2303505243 is about 47994.8460045451. The cubic root of 2303505243 is about 1320.6763527656.

Adding to 2303505243 its reverse (3425053032), we get a palindrome (5728558275).

The spelling of 2303505243 in words is "two billion, three hundred three million, five hundred five thousand, two hundred forty-three".