1451444432231 has 2 divisors, whose sum is σ = 1451444432232. Its totient is φ = 1451444432230.

The previous prime is 1451444432183. The next prime is 1451444432287. The reversal of 1451444432231 is 1322344441541.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1451444432231 is a prime.

It is a super-2 number, since 2×1451444432231² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1451444432531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 725722216115 + 725722216116.

It is an arithmetic number, because the mean of its divisors is an integer number (725722216116).

Almost surely, 2^{1451444432231} is an apocalyptic number.

1451444432231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1451444432231 is an equidigital number, since it uses as much as digits as its factorization.

1451444432231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 184320, while the sum is 38.

Adding to 1451444432231 its reverse (1322344441541), we get a palindrome (2773788873772).

The spelling of 1451444432231 in words is "one trillion, four hundred fifty-one billion, four hundred forty-four million, four hundred thirty-two thousand, two hundred thirty-one".