1011311233 has 24 divisors (see below), whose sum is σ = 1113272160. Its totient is φ = 916012800.

The previous prime is 1011311221. The next prime is 1011311237. The reversal of 1011311233 is 3321131101.

It is not a de Polignac number, because 1011311233 - 2⁵ = 1011311201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1011311237) 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 in 23 ways as a sum of consecutive naturals, for example, 1770838 + ... + 1771408.

It is an arithmetic number, because the mean of its divisors is an integer number (46386340).

Almost surely, 2^1011311233 is an apocalyptic number.

It is an amenable number.

1011311233 is a deficient number, since it is larger than the sum of its proper divisors (101960927).

1011311233 is an equidigital number, since it uses as much as digits as its factorization.

1011311233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749 (or 718 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 1011311233 is about 31801.1199960001. The cubic root of 1011311233 is about 1003.7562836664.

Adding to 1011311233 its reverse (3321131101), we get a palindrome (4332442334).

The spelling of 1011311233 in words is "one billion, eleven million, three hundred eleven thousand, two hundred thirty-three".