30381903823 has 2 divisors, whose sum is σ = 30381903824. Its totient is φ = 30381903822.

The previous prime is 30381903707. The next prime is 30381903841. The reversal of 30381903823 is 32830918303.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30381903823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30381903883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15190951911 + 15190951912.

It is an arithmetic number, because the mean of its divisors is an integer number (15190951912).

Almost surely, 2^30381903823 is an apocalyptic number.

30381903823 is a deficient number, since it is larger than the sum of its proper divisors (1).

30381903823 is an equidigital number, since it uses as much as digits as its factorization.

30381903823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 40.

The spelling of 30381903823 in words is "thirty billion, three hundred eighty-one million, nine hundred three thousand, eight hundred twenty-three".