1331210231012 has 6 divisors (see below), whose sum is σ = 2329617904278. Its totient is φ = 665605115504.

The previous prime is 1331210230963. The next prime is 1331210231051. The reversal of 1331210231012 is 2101320121331.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 719148096676 + 612062134336 = 848026^2 + 782344^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 166401278873 + ... + 166401278880.

It is an arithmetic number, because the mean of its divisors is an integer number (388269650713).

Almost surely, 2^{1331210231012} is an apocalyptic number.

It is an amenable number.

1331210231012 is a deficient number, since it is larger than the sum of its proper divisors (998407673266).

1331210231012 is a wasteful number, since it uses less digits than its factorization.

1331210231012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332802557757 (or 332802557755 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1331210231012 its reverse (2101320121331), we get a palindrome (3432530352343).

The spelling of 1331210231012 in words is "one trillion, three hundred thirty-one billion, two hundred ten million, two hundred thirty-one thousand, twelve".