11444142451 has 16 divisors (see below), whose sum is σ = 13140661248. Its totient is φ = 9763142400.

The previous prime is 11444142449. The next prime is 11444142509. The reversal of 11444142451 is 15424144411.

It is a cyclic number.

It is not a de Polignac number, because 11444142451 - 2¹ = 11444142449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11444142401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1406886 + ... + 1414996.

It is an arithmetic number, because the mean of its divisors is an integer number (821291328).

Almost surely, 2^11444142451 is an apocalyptic number.

11444142451 is a deficient number, since it is larger than the sum of its proper divisors (1696518797).

11444142451 is an equidigital number, since it uses as much as digits as its factorization.

11444142451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9042.

The product of its digits is 10240, while the sum is 31.

Adding to 11444142451 its reverse (15424144411), we get a palindrome (26868286862).

The spelling of 11444142451 in words is "eleven billion, four hundred forty-four million, one hundred forty-two thousand, four hundred fifty-one".