11001232401243 has 32 divisors (see below), whose sum is σ = 17220114660864. Its totient is φ = 6115358310912.

The previous prime is 11001232401239. The next prime is 11001232401287. The reversal of 11001232401243 is 34210423210011.

It is not a de Polignac number, because 11001232401243 - 2² = 11001232401239 is a prime.

It is a super-2 number, since 2×11001232401243² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11001232401233) 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 in 31 ways as a sum of consecutive naturals, for example, 2779296 + ... + 5452242.

It is an arithmetic number, because the mean of its divisors is an integer number (538128583152).

Almost surely, 2^{11001232401243} is an apocalyptic number.

11001232401243 is a deficient number, since it is larger than the sum of its proper divisors (6218882259621).

11001232401243 is a wasteful number, since it uses less digits than its factorization.

11001232401243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2678291.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 11001232401243 its reverse (34210423210011), we get a palindrome (45211655611254).

The spelling of 11001232401243 in words is "eleven trillion, one billion, two hundred thirty-two million, four hundred one thousand, two hundred forty-three".