1331211330 has 48 divisors (see below), whose sum is σ = 3464078904. Its totient is φ = 354689280.

The previous prime is 1331211317. The next prime is 1331211373. The reversal of 1331211330 is 331121331.

It is a happy number.

1331211330 is a `hidden beast` number, since 1 + 331 + 2 + 1 + 1 + 330 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1173131001 + 158080329 = 34251^2 + 12573^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 113292 + ... + 124488.

Almost surely, 2^1331211330 is an apocalyptic number.

1331211330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1331211330 is an abundant number, since it is smaller than the sum of its proper divisors (2132867574).

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

1331211330 is a wasteful number, since it uses less digits than its factorization.

1331211330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12531 (or 12528 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 1331211330 is about 36485.7688695195. The cubic root of 1331211330 is about 1100.0582145500.

Adding to 1331211330 its reverse (331121331), we get a palindrome (1662332661).

It can be divided in two parts, 13312 and 11330, that added together give a palindrome (24642).

The spelling of 1331211330 in words is "one billion, three hundred thirty-one million, two hundred eleven thousand, three hundred thirty".