1121232011 has 2 divisors, whose sum is σ = 1121232012. Its totient is φ = 1121232010.

The previous prime is 1121231999. The next prime is 1121232023. The reversal of 1121232011 is 1102321211.

It is a balanced prime because it is at equal distance from previous prime (1121231999) and next prime (1121232023).

It is a cyclic number.

It is not a de Polignac number, because 1121232011 - 2¹⁰ = 1121230987 is a prime.

It is a super-2 number, since 2×1121232011² = 2514322444982208242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1121232061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560616005 + 560616006.

It is an arithmetic number, because the mean of its divisors is an integer number (560616006).

Almost surely, 2^1121232011 is an apocalyptic number.

1121232011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121232011 is an equidigital number, since it uses as much as digits as its factorization.

1121232011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 1121232011 is about 33484.8026871893. The cubic root of 1121232011 is about 1038.8794671332.

Adding to 1121232011 its reverse (1102321211), we get a palindrome (2223553222).

The spelling of 1121232011 in words is "one billion, one hundred twenty-one million, two hundred thirty-two thousand, eleven".