1131323 has 2 divisors, whose sum is σ = 1131324. Its totient is φ = 1131322.

The previous prime is 1131307. The next prime is 1131329. The reversal of 1131323 is 3231311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1131323 - 2⁴ = 1131307 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1131298 and 1131307.

It is not a weakly prime, because it can be changed into another prime (1131329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565661 + 565662.

It is an arithmetic number, because the mean of its divisors is an integer number (565662).

2^1131323 is an apocalyptic number.

1131323 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131323 is an equidigital number, since it uses as much as digits as its factorization.

1131323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54, while the sum is 14.

The square root of 1131323 is about 1063.6366860916. The cubic root of 1131323 is about 104.1986771666.

Adding to 1131323 its reverse (3231311), we get a palindrome (4362634).

The spelling of 1131323 in words is "one million, one hundred thirty-one thousand, three hundred twenty-three".