1011331123 has 32 divisors (see below), whose sum is σ = 1169069760. Its totient is φ = 866396160.

The previous prime is 1011331121. The next prime is 1011331127. The reversal of 1011331123 is 3211331101.

1011331123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 1011331123 - 2¹ = 1011331121 is a prime.

It is a super-2 number, since 2×1011331123² = 2045581280696882258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1011331097 and 1011331106.

It is not an unprimeable number, because it can be changed into a prime (1011331121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3190161 + ... + 3190477.

It is an arithmetic number, because the mean of its divisors is an integer number (36533430).

Almost surely, 2^1011331123 is an apocalyptic number.

1011331123 is a deficient number, since it is larger than the sum of its proper divisors (157738637).

1011331123 is a wasteful number, since it uses less digits than its factorization.

1011331123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567.

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

The square root of 1011331123 is about 31801.4327192974. The cubic root of 1011331123 is about 1003.7628640942.

Adding to 1011331123 its reverse (3211331101), we get a palindrome (4222662224).

The spelling of 1011331123 in words is "one billion, eleven million, three hundred thirty-one thousand, one hundred twenty-three".