1131322361 has 8 divisors (see below), whose sum is σ = 1218619584. Its totient is φ = 1044064080.

The previous prime is 1131322337. The next prime is 1131322399. The reversal of 1131322361 is 1632231311.

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 1131322361 - 2¹⁰ = 1131321337 is a prime.

It is a super-2 number, since 2×1131322361² = 2559780568997228642, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1131322261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84326 + ... + 96816.

It is an arithmetic number, because the mean of its divisors is an integer number (152327448).

Almost surely, 2^1131322361 is an apocalyptic number.

It is an amenable number.

1131322361 is a deficient number, since it is larger than the sum of its proper divisors (87297223).

1131322361 is a wasteful number, since it uses less digits than its factorization.

1131322361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19471.

The product of its digits is 648, while the sum is 23.

The square root of 1131322361 is about 33635.1358106371. The cubic root of 1131322361 is about 1041.9865754856.

Adding to 1131322361 its reverse (1632231311), we get a palindrome (2763553672).

The spelling of 1131322361 in words is "one billion, one hundred thirty-one million, three hundred twenty-two thousand, three hundred sixty-one".