420234123 has 8 divisors (see below), whose sum is σ = 575455888. Its totient is φ = 272584224.

The previous prime is 420234121. The next prime is 420234137. The reversal of 420234123 is 321432024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 420234123 - 2¹ = 420234121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 420234123.

It is not an unprimeable number, because it can be changed into a prime (420234121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1892836 + ... + 1893057.

It is an arithmetic number, because the mean of its divisors is an integer number (71931986).

Almost surely, 2^420234123 is an apocalyptic number.

420234123 is a deficient number, since it is larger than the sum of its proper divisors (155221765).

420234123 is a wasteful number, since it uses less digits than its factorization.

420234123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3785933.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 420234123 is about 20499.6127524400. The cubic root of 420234123 is about 749.0263650380.

Adding to 420234123 its reverse (321432024), we get a palindrome (741666147).

The spelling of 420234123 in words is "four hundred twenty million, two hundred thirty-four thousand, one hundred twenty-three".