2140040311 has 4 divisors (see below), whose sum is σ = 2140847800. Its totient is φ = 2139232824.

The previous prime is 2140040269. The next prime is 2140040327. The reversal of 2140040311 is 1130400412.

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 2140040311 - 2¹⁹ = 2139516023 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 (2140040381) 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, 399756 + ... + 405073.

It is an arithmetic number, because the mean of its divisors is an integer number (535211950).

Almost surely, 2^2140040311 is an apocalyptic number.

2140040311 is a deficient number, since it is larger than the sum of its proper divisors (807489).

2140040311 is an equidigital number, since it uses as much as digits as its factorization.

2140040311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807488.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2140040311 is about 46260.5697219565. The cubic root of 2140040311 is about 1288.6668339434. Note that the first 3 decimals are identical.

Adding to 2140040311 its reverse (1130400412), we get a palindrome (3270440723).

The spelling of 2140040311 in words is "two billion, one hundred forty million, forty thousand, three hundred eleven".