1144313231 has 8 divisors (see below), whose sum is σ = 1211928480. Its totient is φ = 1076731648.

The previous prime is 1144313221. The next prime is 1144313243. The reversal of 1144313231 is 1323134411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1144313231 - 2¹⁸ = 1144051087 is a prime.

It is a super-2 number, since 2×1144313231² = 2618905541283318722, 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 = 1144313197 and 1144313206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144313221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106550 + ... + 116796.

It is an arithmetic number, because the mean of its divisors is an integer number (151491060).

Almost surely, 2^1144313231 is an apocalyptic number.

1144313231 is a deficient number, since it is larger than the sum of its proper divisors (67615249).

1144313231 is a wasteful number, since it uses less digits than its factorization.

1144313231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16833.

The product of its digits is 864, while the sum is 23.

The square root of 1144313231 is about 33827.6991679895. The cubic root of 1144313231 is about 1045.9597513477.

Adding to 1144313231 its reverse (1323134411), we get a palindrome (2467447642).

The spelling of 1144313231 in words is "one billion, one hundred forty-four million, three hundred thirteen thousand, two hundred thirty-one".