1155233123 has 8 divisors (see below), whose sum is σ = 1260811776. Its totient is φ = 1049747400.

The previous prime is 1155233111. The next prime is 1155233137. The reversal of 1155233123 is 3213325511.

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 1155233123 - 2²⁴ = 1138455907 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1155233092 and 1155233101.

It is not an unprimeable number, because it can be changed into a prime (1155233153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4178 + ... + 48248.

It is an arithmetic number, because the mean of its divisors is an integer number (157601472).

Almost surely, 2^1155233123 is an apocalyptic number.

1155233123 is a deficient number, since it is larger than the sum of its proper divisors (105578653).

1155233123 is a wasteful number, since it uses less digits than its factorization.

1155233123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46465.

The product of its digits is 2700, while the sum is 26.

The square root of 1155233123 is about 33988.7205260804. The cubic root of 1155233123 is about 1049.2763337102.

Adding to 1155233123 its reverse (3213325511), we get a palindrome (4368558634).

The spelling of 1155233123 in words is "one billion, one hundred fifty-five million, two hundred thirty-three thousand, one hundred twenty-three".