421029681311 has 2 divisors, whose sum is σ = 421029681312. Its totient is φ = 421029681310.

The previous prime is 421029681301. The next prime is 421029681427. The reversal of 421029681311 is 113186920124.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-421029681311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (421029681301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210514840655 + 210514840656.

It is an arithmetic number, because the mean of its divisors is an integer number (210514840656).

Almost surely, 2^421029681311 is an apocalyptic number.

421029681311 is a deficient number, since it is larger than the sum of its proper divisors (1).

421029681311 is an equidigital number, since it uses as much as digits as its factorization.

421029681311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 38.

The spelling of 421029681311 in words is "four hundred twenty-one billion, twenty-nine million, six hundred eighty-one thousand, three hundred eleven".