2443216123451 has 2 divisors, whose sum is σ = 2443216123452. Its totient is φ = 2443216123450.

The previous prime is 2443216123423. The next prime is 2443216123493. The reversal of 2443216123451 is 1543216123442.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2443216123451 - 2³⁸ = 2168338216507 is a prime.

It is not a weakly prime, because it can be changed into another prime (2443216123351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1221608061725 + 1221608061726.

It is an arithmetic number, because the mean of its divisors is an integer number (1221608061726).

Almost surely, 2^{2443216123451} is an apocalyptic number.

2443216123451 is a deficient number, since it is larger than the sum of its proper divisors (1).

2443216123451 is an equidigital number, since it uses as much as digits as its factorization.

2443216123451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 138240, while the sum is 38.

Subtracting from 2443216123451 its reverse (1543216123442), we obtain a palindrome (900000000009).

The spelling of 2443216123451 in words is "two trillion, four hundred forty-three billion, two hundred sixteen million, one hundred twenty-three thousand, four hundred fifty-one".