1321012123102 has 16 divisors (see below), whose sum is σ = 2265858096480. Its totient is φ = 565831581408.

The previous prime is 1321012123097. The next prime is 1321012123117. The reversal of 1321012123102 is 2013212101231.

It is a self number, because there is not a number n which added to its sum of digits gives 1321012123102.

It is a congruent number.

It is an unprimeable number.

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, 26346673 + ... + 26396764.

It is an arithmetic number, because the mean of its divisors is an integer number (141616131030).

Almost surely, 2^{1321012123102} is an apocalyptic number.

1321012123102 is a deficient number, since it is larger than the sum of its proper divisors (944845973378).

1321012123102 is a wasteful number, since it uses less digits than its factorization.

1321012123102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52745235.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1321012123102 its reverse (2013212101231), we get a palindrome (3334224224333).

The spelling of 1321012123102 in words is "one trillion, three hundred twenty-one billion, twelve million, one hundred twenty-three thousand, one hundred two".