1153331020 has 48 divisors (see below), whose sum is σ = 2442434400. Its totient is φ = 457459200.

The previous prime is 1153330987. The next prime is 1153331063. The reversal of 1153331020 is 201333511.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1918720 + ... + 1919320.

It is an arithmetic number, because the mean of its divisors is an integer number (50884050).

Almost surely, 2^1153331020 is an apocalyptic number.

1153331020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1153331020 is an abundant number, since it is smaller than the sum of its proper divisors (1289103380).

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

1153331020 is a wasteful number, since it uses less digits than its factorization.

1153331020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1258 (or 1256 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 1153331020 is about 33960.7276129355. The cubic root of 1153331020 is about 1048.7001359970.

Adding to 1153331020 its reverse (201333511), we get a palindrome (1354664531).

The spelling of 1153331020 in words is "one billion, one hundred fifty-three million, three hundred thirty-one thousand, twenty".