1011033121 has 12 divisors (see below), whose sum is σ = 1201125888. Its totient is φ = 848159592.

The previous prime is 1011033109. The next prime is 1011033167. The reversal of 1011033121 is 1213301101.

It is not a de Polignac number, because 1011033121 - 2¹³ = 1011024929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1011031121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 217201 + ... + 221806.

It is an arithmetic number, because the mean of its divisors is an integer number (100093824).

Almost surely, 2^1011033121 is an apocalyptic number.

It is an amenable number.

1011033121 is a deficient number, since it is larger than the sum of its proper divisors (190092767).

1011033121 is an equidigital number, since it uses as much as digits as its factorization.

1011033121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439068 (or 439061 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 1011033121 is about 31796.7470191528. The cubic root of 1011033121 is about 1003.6642637712.

Adding to 1011033121 its reverse (1213301101), we get a palindrome (2224334222).

The spelling of 1011033121 in words is "one billion, eleven million, thirty-three thousand, one hundred twenty-one".