1121313331 has 2 divisors, whose sum is σ = 1121313332. Its totient is φ = 1121313330.

The previous prime is 1121313283. The next prime is 1121313371. The reversal of 1121313331 is 1333131211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1121313331 - 2¹³ = 1121305139 is a prime.

It is a super-2 number, since 2×1121313331² = 2514687172556631122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1121313299 and 1121313308.

It is not a weakly prime, because it can be changed into another prime (1121313371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560656665 + 560656666.

It is an arithmetic number, because the mean of its divisors is an integer number (560656666).

Almost surely, 2^1121313331 is an apocalyptic number.

1121313331 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121313331 is an equidigital number, since it uses as much as digits as its factorization.

1121313331 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1121313331 is about 33486.0169473767. The cubic root of 1121313331 is about 1038.9045822552.

Adding to 1121313331 its reverse (1333131211), we get a palindrome (2454444542).

The spelling of 1121313331 in words is "one billion, one hundred twenty-one million, three hundred thirteen thousand, three hundred thirty-one".