11140343031 has 4 divisors (see below), whose sum is σ = 14853790712. Its totient is φ = 7426895352.

The previous prime is 11140343029. The next prime is 11140343057. The reversal of 11140343031 is 13034304111.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 11140343031 - 2¹ = 11140343029 is a prime.

It is a super-2 number, since 2×11140343031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11140342989 and 11140343007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11140344031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1856723836 + ... + 1856723841.

It is an arithmetic number, because the mean of its divisors is an integer number (3713447678).

Almost surely, 2^11140343031 is an apocalyptic number.

11140343031 is a deficient number, since it is larger than the sum of its proper divisors (3713447681).

11140343031 is an equidigital number, since it uses as much as digits as its factorization.

11140343031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3713447680.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 11140343031 its reverse (13034304111), we get a palindrome (24174647142).

The spelling of 11140343031 in words is "eleven billion, one hundred forty million, three hundred forty-three thousand, thirty-one".