11400343503021 has 72 divisors (see below), whose sum is σ = 18889104019968. Its totient is φ = 6608241921600.

The previous prime is 11400343503007. The next prime is 11400343503047. The reversal of 11400343503021 is 12030534300411.

It is a happy number.

11400343503021 is a `hidden beast` number, since 1 + 1 + 4 + 0 + 0 + 3 + 4 + 350 + 302 + 1 = 666.

11400343503021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11400343503021 - 2¹³ = 11400343494829 is a prime.

It is a super-2 number, since 2×11400343503021² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11400343503421) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 385483591 + ... + 385513163.

It is an arithmetic number, because the mean of its divisors is an integer number (262348666944).

Almost surely, 2^{11400343503021} is an apocalyptic number.

11400343503021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11400343503021 is a deficient number, since it is larger than the sum of its proper divisors (7488760516947).

11400343503021 is a wasteful number, since it uses less digits than its factorization.

11400343503021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45015 (or 45001 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 11400343503021 its reverse (12030534300411), we get a palindrome (23430877803432).

The spelling of 11400343503021 in words is "eleven trillion, four hundred billion, three hundred forty-three million, five hundred three thousand, twenty-one".