421414013243 has 2 divisors, whose sum is σ = 421414013244. Its totient is φ = 421414013242.

The previous prime is 421414013231. The next prime is 421414013281. The reversal of 421414013243 is 342310414124.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 421414013243 - 2⁶ = 421414013179 is a prime.

It is not a weakly prime, because it can be changed into another prime (421414013203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210707006621 + 210707006622.

It is an arithmetic number, because the mean of its divisors is an integer number (210707006622).

Almost surely, 2^421414013243 is an apocalyptic number.

421414013243 is a deficient number, since it is larger than the sum of its proper divisors (1).

421414013243 is an equidigital number, since it uses as much as digits as its factorization.

421414013243 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 29.

Adding to 421414013243 its reverse (342310414124), we get a palindrome (763724427367).

The spelling of 421414013243 in words is "four hundred twenty-one billion, four hundred fourteen million, thirteen thousand, two hundred forty-three".