420110023 has 4 divisors (see below), whose sum is σ = 421080688. Its totient is φ = 419139360.

The previous prime is 420110021. The next prime is 420110027. The reversal of 420110023 is 320011024.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 420110023 - 2¹ = 420110021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 420109985 and 420110012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420110021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 484683 + ... + 485548.

It is an arithmetic number, because the mean of its divisors is an integer number (105270172).

Almost surely, 2^420110023 is an apocalyptic number.

420110023 is a deficient number, since it is larger than the sum of its proper divisors (970665).

420110023 is an equidigital number, since it uses as much as digits as its factorization.

420110023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970664.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 420110023 is about 20496.5856424918. The cubic root of 420110023 is about 748.9526257274.

Adding to 420110023 its reverse (320011024), we get a palindrome (740121047).

The spelling of 420110023 in words is "four hundred twenty million, one hundred ten thousand, twenty-three".