423021403111 has 2 divisors, whose sum is σ = 423021403112. Its totient is φ = 423021403110.

The previous prime is 423021403069. The next prime is 423021403127. The reversal of 423021403111 is 111304120324.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 423021403111 - 2¹⁹ = 423020878823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423021403151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211510701555 + 211510701556.

It is an arithmetic number, because the mean of its divisors is an integer number (211510701556).

Almost surely, 2^423021403111 is an apocalyptic number.

423021403111 is a deficient number, since it is larger than the sum of its proper divisors (1).

423021403111 is an equidigital number, since it uses as much as digits as its factorization.

423021403111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 423021403111 its reverse (111304120324), we get a palindrome (534325523435).

The spelling of 423021403111 in words is "four hundred twenty-three billion, twenty-one million, four hundred three thousand, one hundred eleven".