1331042312 has 16 divisors (see below), whose sum is σ = 2496614400. Its totient is φ = 665278480.

The previous prime is 1331042311. The next prime is 1331042333. The reversal of 1331042312 is 2132401331.

It is not an unprimeable number, because it can be changed into a prime (1331042311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5864 + ... + 51927.

It is an arithmetic number, because the mean of its divisors is an integer number (156038400).

Almost surely, 2^1331042312 is an apocalyptic number.

It is an amenable number.

1331042312 is a deficient number, since it is larger than the sum of its proper divisors (1165572088).

1331042312 is a wasteful number, since it uses less digits than its factorization.

1331042312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60676 (or 60672 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1331042312 is about 36483.4525778469. The cubic root of 1331042312 is about 1100.0116560748.

Adding to 1331042312 its reverse (2132401331), we get a palindrome (3463443643).

The spelling of 1331042312 in words is "one billion, three hundred thirty-one million, forty-two thousand, three hundred twelve".