1123013123 has 8 divisors (see below), whose sum is σ = 1134573600. Its totient is φ = 1111507200.

The previous prime is 1123013119. The next prime is 1123013137. The reversal of 1123013123 is 3213103211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1123013123 - 2² = 1123013119 is a prime.

It is a super-2 number, since 2×1123013123² = 2522316948860426258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1123013173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28403 + ... + 55251.

It is an arithmetic number, because the mean of its divisors is an integer number (141821700).

Almost surely, 2^1123013123 is an apocalyptic number.

1123013123 is a deficient number, since it is larger than the sum of its proper divisors (11560477).

1123013123 is a wasteful number, since it uses less digits than its factorization.

1123013123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27277.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1123013123 is about 33511.3879599160. The cubic root of 1123013123 is about 1039.4292735800.

Adding to 1123013123 its reverse (3213103211), we get a palindrome (4336116334).

The spelling of 1123013123 in words is "one billion, one hundred twenty-three million, thirteen thousand, one hundred twenty-three".