11400443123 has 2 divisors, whose sum is σ = 11400443124. Its totient is φ = 11400443122.

The previous prime is 11400443053. The next prime is 11400443129. The reversal of 11400443123 is 32134400411.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11400443123 - 2²² = 11396248819 is a prime.

It is a super-4 number, since 4×11400443123⁴ (a number of 41 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (11400443129) 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, 5700221561 + 5700221562.

It is an arithmetic number, because the mean of its divisors is an integer number (5700221562).

Almost surely, 2^11400443123 is an apocalyptic number.

11400443123 is a deficient number, since it is larger than the sum of its proper divisors (1).

11400443123 is an equidigital number, since it uses as much as digits as its factorization.

11400443123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 11400443123 its reverse (32134400411), we get a palindrome (43534843534).

The spelling of 11400443123 in words is "eleven billion, four hundred million, four hundred forty-three thousand, one hundred twenty-three".