11140277231 has 4 divisors (see below), whose sum is σ = 11143364232. Its totient is φ = 11137190232.

The previous prime is 11140277221. The next prime is 11140277237. The reversal of 11140277231 is 13277204111.

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

It is a cyclic number.

It is not a de Polignac number, because 11140277231 - 2¹⁸ = 11140015087 is a prime.

It is a super-2 number, since 2×11140277231² (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 = 11140277194 and 11140277203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11140277237) 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, 1538081 + ... + 1545306.

It is an arithmetic number, because the mean of its divisors is an integer number (2785841058).

Almost surely, 2^11140277231 is an apocalyptic number.

11140277231 is a deficient number, since it is larger than the sum of its proper divisors (3087001).

11140277231 is an equidigital number, since it uses as much as digits as its factorization.

11140277231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3087000.

The product of its (nonzero) digits is 2352, while the sum is 29.

The spelling of 11140277231 in words is "eleven billion, one hundred forty million, two hundred seventy-seven thousand, two hundred thirty-one".