1153115323 has 8 divisors (see below), whose sum is σ = 1190488320. Its totient is φ = 1116069120.

The previous prime is 1153115311. The next prime is 1153115399. The reversal of 1153115323 is 3235113511.

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 1153115323 - 2⁵ = 1153115291 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1153115123) 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, 74518 + ... + 88651.

It is an arithmetic number, because the mean of its divisors is an integer number (148811040).

Almost surely, 2^1153115323 is an apocalyptic number.

1153115323 is a deficient number, since it is larger than the sum of its proper divisors (37372997).

1153115323 is a wasteful number, since it uses less digits than its factorization.

1153115323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163397.

The product of its digits is 1350, while the sum is 25.

The square root of 1153115323 is about 33957.5517815993. The cubic root of 1153115323 is about 1048.6347556415.

Adding to 1153115323 its reverse (3235113511), we get a palindrome (4388228834).

The spelling of 1153115323 in words is "one billion, one hundred fifty-three million, one hundred fifteen thousand, three hundred twenty-three".