1140244031 has 4 divisors (see below), whose sum is σ = 1142784000. Its totient is φ = 1137704064.

The previous prime is 1140244019. The next prime is 1140244033. The reversal of 1140244031 is 1304420411.

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 1140244031 - 2⁶ = 1140243967 is a prime.

It is a super-2 number, since 2×1140244031² = 2600312900462257922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1140243994 and 1140244012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140244033) 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, 1269311 + ... + 1270208.

It is an arithmetic number, because the mean of its divisors is an integer number (285696000).

Almost surely, 2^1140244031 is an apocalyptic number.

1140244031 is a deficient number, since it is larger than the sum of its proper divisors (2539969).

1140244031 is an equidigital number, since it uses as much as digits as its factorization.

1140244031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2539968.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1140244031 is about 33767.4996261198. The cubic root of 1140244031 is about 1044.7184611247.

Adding to 1140244031 its reverse (1304420411), we get a palindrome (2444664442).

The spelling of 1140244031 in words is "one billion, one hundred forty million, two hundred forty-four thousand, thirty-one".