1140122311 has 4 divisors (see below), whose sum is σ = 1140331824. Its totient is φ = 1139912800.

The previous prime is 1140122299. The next prime is 1140122377. The reversal of 1140122311 is 1132210411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1132210411 = 1867 ⋅606433.

It is a cyclic number.

It is not a de Polignac number, because 1140122311 - 2¹⁵ = 1140089543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140122411) 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 3 ways as a sum of consecutive naturals, for example, 96370 + ... + 107551.

It is an arithmetic number, because the mean of its divisors is an integer number (285082956).

Almost surely, 2^1140122311 is an apocalyptic number.

1140122311 is a deficient number, since it is larger than the sum of its proper divisors (209513).

1140122311 is an equidigital number, since it uses as much as digits as its factorization.

1140122311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209512.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1140122311 is about 33765.6972532776. The cubic root of 1140122311 is about 1044.6812855574.

Adding to 1140122311 its reverse (1132210411), we get a palindrome (2272332722).

The spelling of 1140122311 in words is "one billion, one hundred forty million, one hundred twenty-two thousand, three hundred eleven".