1151335320 has 96 divisors (see below), whose sum is σ = 3536881200. Its totient is φ = 299824896.

The previous prime is 1151335313. The next prime is 1151335321. The reversal of 1151335320 is 235331511.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151335321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 219286 + ... + 224474.

Almost surely, 2^1151335320 is an apocalyptic number.

1151335320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1151335320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1768440600).

1151335320 is an abundant number, since it is smaller than the sum of its proper divisors (2385545880).

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

1151335320 is a wasteful number, since it uses less digits than its factorization.

1151335320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5289 (or 5242 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 24.

The square root of 1151335320 is about 33931.3324229981. The cubic root of 1151335320 is about 1048.0949038038.

Adding to 1151335320 its reverse (235331511), we get a palindrome (1386666831).

The spelling of 1151335320 in words is "one billion, one hundred fifty-one million, three hundred thirty-five thousand, three hundred twenty".