1123113331 has 2 divisors, whose sum is σ = 1123113332. Its totient is φ = 1123113330.

The previous prime is 1123113323. The next prime is 1123113349. The reversal of 1123113331 is 1333113211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1123113331 - 2³ = 1123113323 is a prime.

It is a super-2 number, since 2×1123113331² = 2522767108539831122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1123113299 and 1123113308.

It is not a weakly prime, because it can be changed into another prime (1123113361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561556665 + 561556666.

It is an arithmetic number, because the mean of its divisors is an integer number (561556666).

Almost surely, 2^1123113331 is an apocalyptic number.

1123113331 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123113331 is an equidigital number, since it uses as much as digits as its factorization.

1123113331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 162, while the sum is 19.

The square root of 1123113331 is about 33512.8830601009. The cubic root of 1123113331 is about 1039.4601892267.

Adding to 1123113331 its reverse (1333113211), we get a palindrome (2456226542).

The spelling of 1123113331 in words is "one billion, one hundred twenty-three million, one hundred thirteen thousand, three hundred thirty-one".