11140311021 has 64 divisors (see below), whose sum is σ = 18989107200. Its totient is φ = 5675090688.

The previous prime is 11140310861. The next prime is 11140311079. The reversal of 11140311021 is 12011304111.

11140311021 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 11140311021 - 2²³ = 11131922413 is a prime.

It is a super-2 number, since 2×11140311021² (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 (11140310021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1957446 + ... + 1963128.

It is an arithmetic number, because the mean of its divisors is an integer number (296704800).

Almost surely, 2^11140311021 is an apocalyptic number.

It is an amenable number.

11140311021 is a deficient number, since it is larger than the sum of its proper divisors (7848796179).

11140311021 is an equidigital number, since it uses as much as digits as its factorization.

11140311021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5763 (or 5729 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 11140311021 its reverse (12011304111), we get a palindrome (23151615132).

The spelling of 11140311021 in words is "eleven billion, one hundred forty million, three hundred eleven thousand, twenty-one".