230402503 has 4 divisors (see below), whose sum is σ = 231417720. Its totient is φ = 229387288.

The previous prime is 230402483. The next prime is 230402521. The reversal of 230402503 is 305204032.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 230402503 - 2²¹ = 228305351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230402563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 507268 + ... + 507721.

It is an arithmetic number, because the mean of its divisors is an integer number (57854430).

Almost surely, 2^230402503 is an apocalyptic number.

230402503 is a deficient number, since it is larger than the sum of its proper divisors (1015217).

230402503 is a wasteful number, since it uses less digits than its factorization.

230402503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015216.

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 230402503 is about 15179.0152183862. The cubic root of 230402503 is about 613.0497658981.

Adding to 230402503 its reverse (305204032), we get a palindrome (535606535).

The spelling of 230402503 in words is "two hundred thirty million, four hundred two thousand, five hundred three".