420213242312023 has 4 divisors (see below), whose sum is σ = 433768508193088. Its totient is φ = 406657976430960.

The previous prime is 420213242312009. The next prime is 420213242312033. The reversal of 420213242312023 is 320213242312024.

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 420213242312023 - 2¹⁷ = 420213242180951 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 13555265881033 = 420213242312023 / (4 + 2 + 0 + 2 + 1 + 3 + 2 + 4 + 2 + 3 + 1 + 2 + 0 + 2 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420213242312033) 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, 6777632940486 + ... + 6777632940547.

It is an arithmetic number, because the mean of its divisors is an integer number (108442127048272).

Almost surely, 2^{420213242312023} is an apocalyptic number.

420213242312023 is a deficient number, since it is larger than the sum of its proper divisors (13555265881065).

420213242312023 is a wasteful number, since it uses less digits than its factorization.

420213242312023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13555265881064.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 420213242312023 its reverse (320213242312024), we get a palindrome (740426484624047).

Subtracting from 420213242312023 its reverse (320213242312024), we obtain a palindrome (99999999999999).

The spelling of 420213242312023 in words is "four hundred twenty trillion, two hundred thirteen billion, two hundred forty-two million, three hundred twelve thousand, twenty-three".