1122131011 has 2 divisors, whose sum is σ = 1122131012. Its totient is φ = 1122131010.

The previous prime is 1122130991. The next prime is 1122131027. The reversal of 1122131011 is 1101312211.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1122131011 - 2¹³ = 1122122819 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1122130982 and 1122131000.

It is not a weakly prime, because it can be changed into another prime (1122131041) 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, 561065505 + 561065506.

It is an arithmetic number, because the mean of its divisors is an integer number (561065506).

Almost surely, 2^1122131011 is an apocalyptic number.

1122131011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122131011 is an equidigital number, since it uses as much as digits as its factorization.

1122131011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 13.

The square root of 1122131011 is about 33498.2239976987. The cubic root of 1122131011 is about 1039.1570496287.

Adding to 1122131011 its reverse (1101312211), we get a palindrome (2223443222).

The spelling of 1122131011 in words is "one billion, one hundred twenty-two million, one hundred thirty-one thousand, eleven".