1331206330 has 16 divisors (see below), whose sum is σ = 2410874784. Its totient is φ = 529215120.

The previous prime is 1331206307. The next prime is 1331206363. The reversal of 1331206330 is 336021331.

It is a super-3 number, since 3×1331206330³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 406716 + ... + 409975.

It is an arithmetic number, because the mean of its divisors is an integer number (150679674).

Almost surely, 2^1331206330 is an apocalyptic number.

1331206330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1331206330 is a deficient number, since it is larger than the sum of its proper divisors (1079668454).

1331206330 is a wasteful number, since it uses less digits than its factorization.

1331206330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816861.

The product of its (nonzero) digits is 972, while the sum is 22.

The square root of 1331206330 is about 36485.7003495890. The cubic root of 1331206330 is about 1100.0568372835.

Adding to 1331206330 its reverse (336021331), we get a palindrome (1667227661).

The spelling of 1331206330 in words is "one billion, three hundred thirty-one million, two hundred six thousand, three hundred thirty".