421200013344049 has 2 divisors, whose sum is σ = 421200013344050. Its totient is φ = 421200013344048.

The previous prime is 421200013343999. The next prime is 421200013344199. The reversal of 421200013344049 is 940443310002124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 359922820743424 + 61277192600625 = 18971632^2 + 7827975^2 .

It is a cyclic number.

It is not a de Polignac number, because 421200013344049 - 2¹¹ = 421200013342001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 421200013343999 and 421200013344017.

It is not a weakly prime, because it can be changed into another prime (421200013744049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210600006672024 + 210600006672025.

It is an arithmetic number, because the mean of its divisors is an integer number (210600006672025).

Almost surely, 2^{421200013344049} is an apocalyptic number.

It is an amenable number.

421200013344049 is a deficient number, since it is larger than the sum of its proper divisors (1).

421200013344049 is an equidigital number, since it uses as much as digits as its factorization.

421200013344049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 37.

The spelling of 421200013344049 in words is "four hundred twenty-one trillion, two hundred billion, thirteen million, three hundred forty-four thousand, forty-nine".