30242390903 has 4 divisors (see below), whose sum is σ = 31557277488. Its totient is φ = 28927504320.

The previous prime is 30242390881. The next prime is 30242390917. The reversal of 30242390903 is 30909324203.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30242390903 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 (30242390963) 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, 657443258 + ... + 657443303.

It is an arithmetic number, because the mean of its divisors is an integer number (7889319372).

Almost surely, 2^30242390903 is an apocalyptic number.

30242390903 is a deficient number, since it is larger than the sum of its proper divisors (1314886585).

30242390903 is a wasteful number, since it uses less digits than its factorization.

30242390903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1314886584.

The product of its (nonzero) digits is 34992, while the sum is 35.

The spelling of 30242390903 in words is "thirty billion, two hundred forty-two million, three hundred ninety thousand, nine hundred three".