1153112423 has 4 divisors (see below), whose sum is σ = 1161529440. Its totient is φ = 1144695408.

The previous prime is 1153112407. The next prime is 1153112449. The reversal of 1153112423 is 3242113511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1153112423 - 2⁴ = 1153112407 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 (1153118423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4208303 + ... + 4208576.

It is an arithmetic number, because the mean of its divisors is an integer number (290382360).

Almost surely, 2^1153112423 is an apocalyptic number.

1153112423 is a deficient number, since it is larger than the sum of its proper divisors (8417017).

1153112423 is an equidigital number, since it uses as much as digits as its factorization.

1153112423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8417016.

The product of its digits is 720, while the sum is 23.

The square root of 1153112423 is about 33957.5090812032. The cubic root of 1153112423 is about 1048.6338765611.

Adding to 1153112423 its reverse (3242113511), we get a palindrome (4395225934).

The spelling of 1153112423 in words is "one billion, one hundred fifty-three million, one hundred twelve thousand, four hundred twenty-three".