1123113011 has 2 divisors, whose sum is σ = 1123113012. Its totient is φ = 1123113010.

The previous prime is 1123112953. The next prime is 1123113037. The reversal of 1123113011 is 1103113211.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1123113011 - 2³⁰ = 49371187 is a prime.

It is a super-2 number, since 2×1123113011² = 2522765670954972242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1123113811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561556505 + 561556506.

It is an arithmetic number, because the mean of its divisors is an integer number (561556506).

Almost surely, 2^1123113011 is an apocalyptic number.

1123113011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123113011 is an equidigital number, since it uses as much as digits as its factorization.

1123113011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 1123113011 is about 33512.8782858172. The cubic root of 1123113011 is about 1039.4600905049.

Adding to 1123113011 its reverse (1103113211), we get a palindrome (2226226222).

It can be divided in two parts, 11231 and 13011, that added together give a palindrome (24242).

The spelling of 1123113011 in words is "one billion, one hundred twenty-three million, one hundred thirteen thousand, eleven".