1113021011 has 2 divisors, whose sum is σ = 1113021012. Its totient is φ = 1113021010.

The previous prime is 1113021001. The next prime is 1113021023. The reversal of 1113021011 is 1101203111.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1113021011 - 2³⁰ = 39279187 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 1113020983 and 1113021001.

It is not a weakly prime, because it can be changed into another prime (1113021001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556510505 + 556510506.

It is an arithmetic number, because the mean of its divisors is an integer number (556510506).

Almost surely, 2^1113021011 is an apocalyptic number.

1113021011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113021011 is an equidigital number, since it uses as much as digits as its factorization.

1113021011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6, while the sum is 11.

The square root of 1113021011 is about 33361.9695311893. The cubic root of 1113021011 is about 1036.3372792482.

Adding to 1113021011 its reverse (1101203111), we get a palindrome (2214224122).

The spelling of 1113021011 in words is "one billion, one hundred thirteen million, twenty-one thousand, eleven".