421108806311 has 2 divisors, whose sum is σ = 421108806312. Its totient is φ = 421108806310.

The previous prime is 421108806281. The next prime is 421108806337. The reversal of 421108806311 is 113608801124.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 421108806311 - 2¹⁰ = 421108805287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (421108806341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210554403155 + 210554403156.

It is an arithmetic number, because the mean of its divisors is an integer number (210554403156).

Almost surely, 2^421108806311 is an apocalyptic number.

421108806311 is a deficient number, since it is larger than the sum of its proper divisors (1).

421108806311 is an equidigital number, since it uses as much as digits as its factorization.

421108806311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 35.

The spelling of 421108806311 in words is "four hundred twenty-one billion, one hundred eight million, eight hundred six thousand, three hundred eleven".