1141323263 has 4 divisors (see below), whose sum is σ = 1142700840. Its totient is φ = 1139945688.

The previous prime is 1141323259. The next prime is 1141323269. The reversal of 1141323263 is 3623231411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3623231411 = 73 ⋅49633307.

It is a cyclic number.

It is not a de Polignac number, because 1141323263 - 2² = 1141323259 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 (1141323269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 687545 + ... + 689202.

It is an arithmetic number, because the mean of its divisors is an integer number (285675210).

Almost surely, 2^1141323263 is an apocalyptic number.

1141323263 is a deficient number, since it is larger than the sum of its proper divisors (1377577).

1141323263 is an equidigital number, since it uses as much as digits as its factorization.

1141323263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1377576.

The product of its digits is 2592, while the sum is 26.

The square root of 1141323263 is about 33783.4761828915. The cubic root of 1141323263 is about 1045.0479631229.

Adding to 1141323263 its reverse (3623231411), we get a palindrome (4764554674).

The spelling of 1141323263 in words is "one billion, one hundred forty-one million, three hundred twenty-three thousand, two hundred sixty-three".