420341434274009 has 2 divisors, whose sum is σ = 420341434274010. Its totient is φ = 420341434274008.

The previous prime is 420341434273913. The next prime is 420341434274039. The reversal of 420341434274009 is 900472434143024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 354366882883225 + 65974551390784 = 18824635^2 + 8122472^2 .

It is a cyclic number.

It is not a de Polignac number, because 420341434274009 - 2¹⁶ = 420341434208473 is a prime.

It is not a weakly prime, because it can be changed into another prime (420341434274039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210170717137004 + 210170717137005.

It is an arithmetic number, because the mean of its divisors is an integer number (210170717137005).

Almost surely, 2^{420341434274009} is an apocalyptic number.

It is an amenable number.

420341434274009 is a deficient number, since it is larger than the sum of its proper divisors (1).

420341434274009 is an equidigital number, since it uses as much as digits as its factorization.

420341434274009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2322432, while the sum is 47.

The spelling of 420341434274009 in words is "four hundred twenty trillion, three hundred forty-one billion, four hundred thirty-four million, two hundred seventy-four thousand, nine".