420011110023 has 4 divisors (see below), whose sum is σ = 560014813368. Its totient is φ = 280007406680.

The previous prime is 420011110009. The next prime is 420011110061. The reversal of 420011110023 is 320011110024.

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 420011110023 - 2⁸ = 420011109767 is a prime.

It is a super-2 number, since 2×420011110023² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 420011109984 and 420011110011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420011110003) 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, 70001851668 + ... + 70001851673.

It is an arithmetic number, because the mean of its divisors is an integer number (140003703342).

Almost surely, 2^420011110023 is an apocalyptic number.

420011110023 is a deficient number, since it is larger than the sum of its proper divisors (140003703345).

420011110023 is a wasteful number, since it uses less digits than its factorization.

420011110023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140003703344.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 420011110023 its reverse (320011110024), we get a palindrome (740022220047).

Subtracting from 420011110023 its reverse (320011110024), we obtain a palindrome (99999999999).

The spelling of 420011110023 in words is "four hundred twenty billion, eleven million, one hundred ten thousand, twenty-three".