30423431903 has 2 divisors, whose sum is σ = 30423431904. Its totient is φ = 30423431902.

The previous prime is 30423431887. The next prime is 30423431917. The reversal of 30423431903 is 30913432403.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30423431903 - 2⁴ = 30423431887 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30423431903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30423431993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15211715951 + 15211715952.

It is an arithmetic number, because the mean of its divisors is an integer number (15211715952).

Almost surely, 2^30423431903 is an apocalyptic number.

30423431903 is a deficient number, since it is larger than the sum of its proper divisors (1).

30423431903 is an equidigital number, since it uses as much as digits as its factorization.

30423431903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 32.

The spelling of 30423431903 in words is "thirty billion, four hundred twenty-three million, four hundred thirty-one thousand, nine hundred three".