11442421451 has 2 divisors, whose sum is σ = 11442421452. Its totient is φ = 11442421450.

The previous prime is 11442421423. The next prime is 11442421477. The reversal of 11442421451 is 15412424411.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11442421451 - 2¹⁰ = 11442420427 is a prime.

It is not a weakly prime, because it can be changed into another prime (11442421351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5721210725 + 5721210726.

It is an arithmetic number, because the mean of its divisors is an integer number (5721210726).

Almost surely, 2^11442421451 is an apocalyptic number.

11442421451 is a deficient number, since it is larger than the sum of its proper divisors (1).

11442421451 is an equidigital number, since it uses as much as digits as its factorization.

11442421451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5120, while the sum is 29.

Adding to 11442421451 its reverse (15412424411), we get a palindrome (26854845862).

The spelling of 11442421451 in words is "eleven billion, four hundred forty-two million, four hundred twenty-one thousand, four hundred fifty-one".