1123331101 has 6 divisors (see below), whose sum is σ = 1135040730. Its totient is φ = 1111741056.

The previous prime is 1123331071. The next prime is 1123331189. The reversal of 1123331101 is 1011333211.

It can be written as a sum of positive squares in 3 ways, for example, as 105083001 + 1018248100 = 10251^2 + 31910^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1123331101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123341101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50286 + ... + 69103.

It is an arithmetic number, because the mean of its divisors is an integer number (189173455).

Almost surely, 2^1123331101 is an apocalyptic number.

It is an amenable number.

1123331101 is a deficient number, since it is larger than the sum of its proper divisors (11709629).

1123331101 is an frugal number, since it uses more digits than its factorization.

1123331101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119583 (or 119486 counting only the distinct ones).

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

The square root of 1123331101 is about 33516.1319516438. The cubic root of 1123331101 is about 1039.5273681451.

Adding to 1123331101 its reverse (1011333211), we get a palindrome (2134664312).

The spelling of 1123331101 in words is "one billion, one hundred twenty-three million, three hundred thirty-one thousand, one hundred one".