1331212646063 has 32 divisors (see below), whose sum is σ = 1535133124800. Its totient is φ = 1145834919936.

The previous prime is 1331212646059. The next prime is 1331212646117. The reversal of 1331212646063 is 3606462121331.

It is a cyclic number.

It is not a de Polignac number, because 1331212646063 - 2² = 1331212646059 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331212646033) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 85915745 + ... + 85931237.

It is an arithmetic number, because the mean of its divisors is an integer number (47972910150).

Almost surely, 2^{1331212646063} is an apocalyptic number.

1331212646063 is a deficient number, since it is larger than the sum of its proper divisors (203920478737).

1331212646063 is a wasteful number, since it uses less digits than its factorization.

1331212646063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24731.

The product of its (nonzero) digits is 93312, while the sum is 38.

Adding to 1331212646063 its reverse (3606462121331), we get a palindrome (4937674767394).

The spelling of 1331212646063 in words is "one trillion, three hundred thirty-one billion, two hundred twelve million, six hundred forty-six thousand, sixty-three".