427700123 has 2 divisors, whose sum is σ = 427700124. Its totient is φ = 427700122.

The previous prime is 427700107. The next prime is 427700173. The reversal of 427700123 is 321007724.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 427700123 - 2⁴ = 427700107 is a prime.

It is equal to p_22732334 and since 427700123 and 22732334 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 427700092 and 427700101.

It is not a weakly prime, because it can be changed into another prime (427700173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213850061 + 213850062.

It is an arithmetic number, because the mean of its divisors is an integer number (213850062).

Almost surely, 2^427700123 is an apocalyptic number.

427700123 is a deficient number, since it is larger than the sum of its proper divisors (1).

427700123 is an equidigital number, since it uses as much as digits as its factorization.

427700123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 427700123 is about 20680.9120446851. The cubic root of 427700123 is about 753.4361577913.

Adding to 427700123 its reverse (321007724), we get a palindrome (748707847).

The spelling of 427700123 in words is "four hundred twenty-seven million, seven hundred thousand, one hundred twenty-three".