18030055423 has 2 divisors, whose sum is σ = 18030055424. Its totient is φ = 18030055422.

The previous prime is 18030055403. The next prime is 18030055427. The reversal of 18030055423 is 32455003081.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18030055423 - 2⁵ = 18030055391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18030055427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9015027711 + 9015027712.

It is an arithmetic number, because the mean of its divisors is an integer number (9015027712).

Almost surely, 2^18030055423 is an apocalyptic number.

18030055423 is a deficient number, since it is larger than the sum of its proper divisors (1).

18030055423 is an equidigital number, since it uses as much as digits as its factorization.

18030055423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14400, while the sum is 31.

The spelling of 18030055423 in words is "eighteen billion, thirty million, fifty-five thousand, four hundred twenty-three".