451013121211 has 2 divisors, whose sum is σ = 451013121212. Its totient is φ = 451013121210.

The previous prime is 451013121173. The next prime is 451013121227. The reversal of 451013121211 is 112121310154.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 451013121211 - 2⁹ = 451013120699 is a prime.

It is not a weakly prime, because it can be changed into another prime (451013121511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225506560605 + 225506560606.

It is an arithmetic number, because the mean of its divisors is an integer number (225506560606).

Almost surely, 2^451013121211 is an apocalyptic number.

451013121211 is a deficient number, since it is larger than the sum of its proper divisors (1).

451013121211 is an equidigital number, since it uses as much as digits as its factorization.

451013121211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 22.

Adding to 451013121211 its reverse (112121310154), we get a palindrome (563134431365).

The spelling of 451013121211 in words is "four hundred fifty-one billion, thirteen million, one hundred twenty-one thousand, two hundred eleven".