1331013312 has 84 divisors (see below), whose sum is σ = 3981023280. Its totient is φ = 424376832.

The previous prime is 1331013301. The next prime is 1331013329. The reversal of 1331013312 is 2133101331.

It is a happy number.

1331013312 is a `hidden beast` number, since 1 + 331 + 0 + 1 + 331 + 2 = 666.

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 11 ways as a sum of consecutive naturals, for example, 36987 + ... + 63482.

Almost surely, 2^1331013312 is an apocalyptic number.

1331013312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1331013312 is an abundant number, since it is smaller than the sum of its proper divisors (2650009968).

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

1331013312 is a wasteful number, since it uses less digits than its factorization.

1331013312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100510 (or 100497 counting only the distinct ones).

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

The square root of 1331013312 is about 36483.0551352268. The cubic root of 1331013312 is about 1100.0036672054.

Adding to 1331013312 its reverse (2133101331), we get a palindrome (3464114643).

It can be divided in two parts, 133101331 and 2, that multiplied together give a palindrome (266202662).

The spelling of 1331013312 in words is "one billion, three hundred thirty-one million, thirteen thousand, three hundred twelve".