42213122131223 has 2 divisors, whose sum is σ = 42213122131224. Its totient is φ = 42213122131222.

The previous prime is 42213122131217. The next prime is 42213122131249. The reversal of 42213122131223 is 32213122131224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42213122131223 - 2²⁸ = 42212853695767 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42213122131253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21106561065611 + 21106561065612.

It is an arithmetic number, because the mean of its divisors is an integer number (21106561065612).

Almost surely, 2^{42213122131223} is an apocalyptic number.

42213122131223 is a deficient number, since it is larger than the sum of its proper divisors (1).

42213122131223 is an equidigital number, since it uses as much as digits as its factorization.

42213122131223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 29.

Adding to 42213122131223 its reverse (32213122131224), we get a palindrome (74426244262447).

Subtracting from 42213122131223 its reverse (32213122131224), we obtain a palindrome (9999999999999).

The spelling of 42213122131223 in words is "forty-two trillion, two hundred thirteen billion, one hundred twenty-two million, one hundred thirty-one thousand, two hundred twenty-three".