1321012012102 has 16 divisors (see below), whose sum is σ = 2082763474272. Its totient is φ = 627176756800.

The previous prime is 1321012012097. The next prime is 1321012012127. The reversal of 1321012012102 is 2012102101231.

It is a super-2 number, since 2×1321012012102² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 104802649 + ... + 104815252.

It is an arithmetic number, because the mean of its divisors is an integer number (130172717142).

Almost surely, 2^{1321012012102} is an apocalyptic number.

1321012012102 is a deficient number, since it is larger than the sum of its proper divisors (761751462170).

1321012012102 is a wasteful number, since it uses less digits than its factorization.

1321012012102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209618063.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1321012012102 its reverse (2012102101231), we get a palindrome (3333114113333).

The spelling of 1321012012102 in words is "one trillion, three hundred twenty-one billion, twelve million, twelve thousand, one hundred two".