423751421032111 has 2 divisors, whose sum is σ = 423751421032112. Its totient is φ = 423751421032110.

The previous prime is 423751421032097. The next prime is 423751421032123. The reversal of 423751421032111 is 111230124157324.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 423751421032111 - 2¹³ = 423751421023919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423751427032111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211875710516055 + 211875710516056.

It is an arithmetic number, because the mean of its divisors is an integer number (211875710516056).

Almost surely, 2^{423751421032111} is an apocalyptic number.

423751421032111 is a deficient number, since it is larger than the sum of its proper divisors (1).

423751421032111 is an equidigital number, since it uses as much as digits as its factorization.

423751421032111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 37.

Adding to 423751421032111 its reverse (111230124157324), we get a palindrome (534981545189435).

The spelling of 423751421032111 in words is "four hundred twenty-three trillion, seven hundred fifty-one billion, four hundred twenty-one million, thirty-two thousand, one hundred eleven".