1331321123302 has 16 divisors (see below), whose sum is σ = 1997919888192. Its totient is φ = 665347894120.

The previous prime is 1331321123227. The next prime is 1331321123303. The reversal of 1331321123302 is 2033211231331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331321123303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72176493 + ... + 72194935.

It is an arithmetic number, because the mean of its divisors is an integer number (124869993012).

Almost surely, 2^{1331321123302} is an apocalyptic number.

1331321123302 is a deficient number, since it is larger than the sum of its proper divisors (666598764890).

1331321123302 is a wasteful number, since it uses less digits than its factorization.

1331321123302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33443.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 1331321123302 its reverse (2033211231331), we get a palindrome (3364532354633).

The spelling of 1331321123302 in words is "one trillion, three hundred thirty-one billion, three hundred twenty-one million, one hundred twenty-three thousand, three hundred two".