1152203320 has 128 divisors (see below), whose sum is σ = 2830464000. Its totient is φ = 420664320.

The previous prime is 1152203293. The next prime is 1152203333. The reversal of 1152203320 is 233022511.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3209301 + ... + 3209659.

It is an arithmetic number, because the mean of its divisors is an integer number (22113000).

Almost surely, 2^1152203320 is an apocalyptic number.

1152203320 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 1152203320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1415232000).

1152203320 is an abundant number, since it is smaller than the sum of its proper divisors (1678260680).

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

1152203320 is a wasteful number, since it uses less digits than its factorization.

1152203320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533 (or 529 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 1152203320 is about 33944.1205512825. The cubic root of 1152203320 is about 1048.3582264099.

Adding to 1152203320 its reverse (233022511), we get a palindrome (1385225831).

The spelling of 1152203320 in words is "one billion, one hundred fifty-two million, two hundred three thousand, three hundred twenty".