1140242313 has 16 divisors (see below), whose sum is σ = 1759508480. Its totient is φ = 643318416.

The previous prime is 1140242303. The next prime is 1140242333. The reversal of 1140242313 is 3132420411.

It is not a de Polignac number, because 1140242313 - 2⁵ = 1140242281 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1140242313.

It is not an unprimeable number, because it can be changed into a prime (1140242303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 341995 + ... + 345312.

It is an arithmetic number, because the mean of its divisors is an integer number (109969280).

Almost surely, 2^1140242313 is an apocalyptic number.

It is an amenable number.

1140242313 is a deficient number, since it is larger than the sum of its proper divisors (619266167).

1140242313 is an equidigital number, since it uses as much as digits as its factorization.

1140242313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687396.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1140242313 is about 33767.4741874485. The cubic root of 1140242313 is about 1044.7179364338.

Adding to 1140242313 its reverse (3132420411), we get a palindrome (4272662724).

The spelling of 1140242313 in words is "one billion, one hundred forty million, two hundred forty-two thousand, three hundred thirteen".