451212043511 has 2 divisors, whose sum is σ = 451212043512. Its totient is φ = 451212043510.

The previous prime is 451212043439. The next prime is 451212043537. The reversal of 451212043511 is 115340212154.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 451212043511 - 2³⁸ = 176334136567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (451212043591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225606021755 + 225606021756.

It is an arithmetic number, because the mean of its divisors is an integer number (225606021756).

Almost surely, 2^451212043511 is an apocalyptic number.

451212043511 is a deficient number, since it is larger than the sum of its proper divisors (1).

451212043511 is an equidigital number, since it uses as much as digits as its factorization.

451212043511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4800, while the sum is 29.

Adding to 451212043511 its reverse (115340212154), we get a palindrome (566552255665).

The spelling of 451212043511 in words is "four hundred fifty-one billion, two hundred twelve million, forty-three thousand, five hundred eleven".