1153230320 has 40 divisors (see below), whose sum is σ = 2925013680. Its totient is φ = 419356160.

The previous prime is 1153230313. The next prime is 1153230359. The reversal of 1153230320 is 230323511.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1153230292 and 1153230301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 654365 + ... + 656124.

It is an arithmetic number, because the mean of its divisors is an integer number (73125342).

Almost surely, 2^1153230320 is an apocalyptic number.

1153230320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1153230320 is an abundant number, since it is smaller than the sum of its proper divisors (1771783360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1153230320 is a wasteful number, since it uses less digits than its factorization.

1153230320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1310513 (or 1310507 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 1153230320 is about 33959.2449857178. The cubic root of 1153230320 is about 1048.6696136302.

Adding to 1153230320 its reverse (230323511), we get a palindrome (1383553831).

The spelling of 1153230320 in words is "one billion, one hundred fifty-three million, two hundred thirty thousand, three hundred twenty".