18471010123 has 2 divisors, whose sum is σ = 18471010124. Its totient is φ = 18471010122.

The previous prime is 18471010097. The next prime is 18471010133. The reversal of 18471010123 is 32101017481.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18471010123 - 2²¹ = 18468912971 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18471010091 and 18471010100.

It is not a weakly prime, because it can be changed into another prime (18471010133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9235505061 + 9235505062.

It is an arithmetic number, because the mean of its divisors is an integer number (9235505062).

Almost surely, 2^18471010123 is an apocalyptic number.

18471010123 is a deficient number, since it is larger than the sum of its proper divisors (1).

18471010123 is an equidigital number, since it uses as much as digits as its factorization.

18471010123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 28.

The spelling of 18471010123 in words is "eighteen billion, four hundred seventy-one million, ten thousand, one hundred twenty-three".