11231001424 has 20 divisors (see below), whose sum is σ = 22290799860. Its totient is φ = 5478536960.

The previous prime is 11231001421. The next prime is 11231001433. The reversal of 11231001424 is 42410013211.

It can be written as a sum of positive squares in 2 ways, for example, as 1277347600 + 9953653824 = 35740^2 + 99768^2 .

It is a super-2 number, since 2×11231001424² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11231001421) 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 3 ways as a sum of consecutive naturals, for example, 8559559 + ... + 8560870.

It is an arithmetic number, because the mean of its divisors is an integer number (1114539993).

Almost surely, 2^11231001424 is an apocalyptic number.

It is an amenable number.

11231001424 is a deficient number, since it is larger than the sum of its proper divisors (11059798436).

11231001424 is a wasteful number, since it uses less digits than its factorization.

11231001424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17120478 (or 17120472 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 11231001424 its reverse (42410013211), we get a palindrome (53641014635).

The spelling of 11231001424 in words is "eleven billion, two hundred thirty-one million, one thousand, four hundred twenty-four".