420417123 has 32 divisors (see below), whose sum is σ = 714032640. Its totient is φ = 214202880.

The previous prime is 420417119. The next prime is 420417131. The reversal of 420417123 is 321714024.

It is a happy number.

It is not a de Polignac number, because 420417123 - 2² = 420417119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 420417093 and 420417102.

It is not an unprimeable number, because it can be changed into a prime (420417103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24208 + ... + 37773.

It is an arithmetic number, because the mean of its divisors is an integer number (22313520).

Almost surely, 2^420417123 is an apocalyptic number.

420417123 is a deficient number, since it is larger than the sum of its proper divisors (293615517).

420417123 is a wasteful number, since it uses less digits than its factorization.

420417123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62027.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 420417123 is about 20504.0757655643. The cubic root of 420417123 is about 749.1350758139.

The spelling of 420417123 in words is "four hundred twenty million, four hundred seventeen thousand, one hundred twenty-three".