421455043523011 has 2 divisors, whose sum is σ = 421455043523012. Its totient is φ = 421455043523010.

The previous prime is 421455043522943. The next prime is 421455043523141. The reversal of 421455043523011 is 110325340554124.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 421455043523011 - 2¹¹ = 421455043520963 is a prime.

It is a super-2 number, since 2×421455043523011² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (421455043563011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210727521761505 + 210727521761506.

It is an arithmetic number, because the mean of its divisors is an integer number (210727521761506).

Almost surely, 2^{421455043523011} is an apocalyptic number.

421455043523011 is a deficient number, since it is larger than the sum of its proper divisors (1).

421455043523011 is an equidigital number, since it uses as much as digits as its factorization.

421455043523011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288000, while the sum is 40.

The spelling of 421455043523011 in words is "four hundred twenty-one trillion, four hundred fifty-five billion, forty-three million, five hundred twenty-three thousand, eleven".