1135273320 has 320 divisors, whose sum is σ = 4014489600. Its totient is φ = 287400960.

The previous prime is 1135273301. The next prime is 1135273327. The reversal of 1135273320 is 233725311.

1135273320 is a `hidden beast` number, since 113 + 527 + 3 + 3 + 20 = 666.

It is a super-2 number, since 2×1135273320² = 2577691022207644800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1135273327) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 8939097 + ... + 8939223.

It is an arithmetic number, because the mean of its divisors is an integer number (12545280).

Almost surely, 2^1135273320 is an apocalyptic number.

1135273320 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 1135273320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2007244800).

1135273320 is an abundant number, since it is smaller than the sum of its proper divisors (2879216280).

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

1135273320 is a wasteful number, since it uses less digits than its factorization.

1135273320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270 (or 257 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The square root of 1135273320 is about 33693.8172369947. The cubic root of 1135273320 is about 1043.1981556049.

Adding to 1135273320 its reverse (233725311), we get a palindrome (1368998631).

The spelling of 1135273320 in words is "one billion, one hundred thirty-five million, two hundred seventy-three thousand, three hundred twenty".