1331203312 has 40 divisors (see below), whose sum is σ = 2648580480. Its totient is φ = 647920320.

The previous prime is 1331203303. The next prime is 1331203351. The reversal of 1331203312 is 2133021331.

It is a self number, because there is not a number n which added to its sum of digits gives 1331203312.

It is a congruent number.

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, 90387 + ... + 104077.

It is an arithmetic number, because the mean of its divisors is an integer number (66214512).

Almost surely, 2^1331203312 is an apocalyptic number.

It is an amenable number.

1331203312 is a deficient number, since it is larger than the sum of its proper divisors (1317377168).

1331203312 is a wasteful number, since it uses less digits than its factorization.

1331203312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13861 (or 13855 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 1331203312 is about 36485.6589908967. The cubic root of 1331203312 is about 1100.0560059639.

Adding to 1331203312 its reverse (2133021331), we get a palindrome (3464224643).

The spelling of 1331203312 in words is "one billion, three hundred thirty-one million, two hundred three thousand, three hundred twelve".