420110111211023 has 2 divisors, whose sum is σ = 420110111211024. Its totient is φ = 420110111211022.

The previous prime is 420110111210981. The next prime is 420110111211101. The reversal of 420110111211023 is 320112111011024.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 420110111211023 - 2²⁴ = 420110094433807 is a prime.

It is a super-2 number, since 2×420110111211023² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 420110111210986 and 420110111211004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420110111211823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210055055605511 + 210055055605512.

It is an arithmetic number, because the mean of its divisors is an integer number (210055055605512).

Almost surely, 2^{420110111211023} is an apocalyptic number.

420110111211023 is a deficient number, since it is larger than the sum of its proper divisors (1).

420110111211023 is an equidigital number, since it uses as much as digits as its factorization.

420110111211023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 420110111211023 its reverse (320112111011024), we get a palindrome (740222222222047).

The spelling of 420110111211023 in words is "four hundred twenty trillion, one hundred ten billion, one hundred eleven million, two hundred eleven thousand, twenty-three".