1140000311 has 4 divisors (see below), whose sum is σ = 1140121752. Its totient is φ = 1139878872.

The previous prime is 1140000287. The next prime is 1140000401. The reversal of 1140000311 is 1130000411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1130000411 = 751 ⋅1504661.

It is a cyclic number.

It is not a de Polignac number, because 1140000311 - 2²⁶ = 1072891447 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1140000292 and 1140000301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140000011) 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, 45341 + ... + 65846.

It is an arithmetic number, because the mean of its divisors is an integer number (285030438).

Almost surely, 2^1140000311 is an apocalyptic number.

1140000311 is a deficient number, since it is larger than the sum of its proper divisors (121441).

1140000311 is a wasteful number, since it uses less digits than its factorization.

1140000311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121440.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1140000311 is about 33763.8906377805. The cubic root of 1140000311 is about 1044.6440218177.

Adding to 1140000311 its reverse (1130000411), we get a palindrome (2270000722).

The spelling of 1140000311 in words is "one billion, one hundred forty million, three hundred eleven", and thus it is an aban number.