47018123 has 2 divisors, whose sum is σ = 47018124. Its totient is φ = 47018122.

The previous prime is 47018099. The next prime is 47018143. The reversal of 47018123 is 32181074.

47018123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47018123 - 2²² = 42823819 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 47018092 and 47018101.

It is not a weakly prime, because it can be changed into another prime (47018143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23509061 + 23509062.

It is an arithmetic number, because the mean of its divisors is an integer number (23509062).

Almost surely, 2^47018123 is an apocalyptic number.

47018123 is a deficient number, since it is larger than the sum of its proper divisors (1).

47018123 is an equidigital number, since it uses as much as digits as its factorization.

47018123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 47018123 is about 6856.9762286302. The cubic root of 47018123 is about 360.9289869859.

Adding to 47018123 its reverse (32181074), we get a palindrome (79199197).

The spelling of 47018123 in words is "forty-seven million, eighteen thousand, one hundred twenty-three".