1451011324421 has 2 divisors, whose sum is σ = 1451011324422. Its totient is φ = 1451011324420.

The previous prime is 1451011324307. The next prime is 1451011324481. The reversal of 1451011324421 is 1244231101541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 758972016100 + 692039308321 = 871190^2 + 831889^2 .

It is a cyclic number.

It is not a de Polignac number, because 1451011324421 - 2²⁶ = 1450944215557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1451011324481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 725505662210 + 725505662211.

It is an arithmetic number, because the mean of its divisors is an integer number (725505662211).

Almost surely, 2^{1451011324421} is an apocalyptic number.

It is an amenable number.

1451011324421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1451011324421 is an equidigital number, since it uses as much as digits as its factorization.

1451011324421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3840, while the sum is 29.

Adding to 1451011324421 its reverse (1244231101541), we get a palindrome (2695242425962).

The spelling of 1451011324421 in words is "one trillion, four hundred fifty-one billion, eleven million, three hundred twenty-four thousand, four hundred twenty-one".