1331523330 has 32 divisors (see below), whose sum is σ = 3197793600. Its totient is φ = 354835392.

The previous prime is 1331523289. The next prime is 1331523353. The reversal of 1331523330 is 333251331.

It is a super-3 number, since 3×1331523330³ (a number of 28 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1331523330.

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, 33316 + ... + 61424.

It is an arithmetic number, because the mean of its divisors is an integer number (99931050).

Almost surely, 2^1331523330 is an apocalyptic number.

1331523330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1331523330 is an abundant number, since it is smaller than the sum of its proper divisors (1866270270).

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

1331523330 is a wasteful number, since it uses less digits than its factorization.

1331523330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29698.

The product of its (nonzero) digits is 2430, while the sum is 24.

The square root of 1331523330 is about 36490.0442586742. The cubic root of 1331523330 is about 1100.1441491533.

Adding to 1331523330 its reverse (333251331), we get a palindrome (1664774661).

The spelling of 1331523330 in words is "one billion, three hundred thirty-one million, five hundred twenty-three thousand, three hundred thirty".