1321100002102 has 32 divisors (see below), whose sum is σ = 2128167717120. Its totient is φ = 613149919200.

The previous prime is 1321100002073. The next prime is 1321100002129. The reversal of 1321100002102 is 2012000011231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1054977 + ... + 1937827.

It is an arithmetic number, because the mean of its divisors is an integer number (66505241160).

Almost surely, 2^{1321100002102} is an apocalyptic number.

1321100002102 is a deficient number, since it is larger than the sum of its proper divisors (807067715018).

1321100002102 is a wasteful number, since it uses less digits than its factorization.

1321100002102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 883668.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 1321100002102 its reverse (2012000011231), we get a palindrome (3333100013333).

The spelling of 1321100002102 in words is "one trillion, three hundred twenty-one billion, one hundred million, two thousand, one hundred two".