1321111111102 has 32 divisors (see below), whose sum is σ = 2046029787648. Its totient is φ = 639358200000.

The previous prime is 1321111111097. The next prime is 1321111111157. The reversal of 1321111111102 is 2011111111231.

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 15 ways as a sum of consecutive naturals, for example, 47798827 + ... + 47826457.

It is an arithmetic number, because the mean of its divisors is an integer number (63938430864).

Almost surely, 2^{1321111111102} is an apocalyptic number.

1321111111102 is a deficient number, since it is larger than the sum of its proper divisors (724918676546).

1321111111102 is a wasteful number, since it uses less digits than its factorization.

1321111111102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32256.

The product of its (nonzero) digits is 12, while the sum is 16.

Adding to 1321111111102 its reverse (2011111111231), we get a palindrome (3332222222333).

The spelling of 1321111111102 in words is "one trillion, three hundred twenty-one billion, one hundred eleven million, one hundred eleven thousand, one hundred two".