1321001100102 has 32 divisors (see below), whose sum is σ = 2643525914112. Its totient is φ = 440079835104.

The previous prime is 1321001100061. The next prime is 1321001100151. The reversal of 1321001100102 is 2010011001231.

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 15 ways as a sum of consecutive naturals, for example, 95669283 + ... + 95683089.

It is an arithmetic number, because the mean of its divisors is an integer number (82610184816).

Almost surely, 2^{1321001100102} is an apocalyptic number.

1321001100102 is an abundant number, since it is smaller than the sum of its proper divisors (1322524814010).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1321001100102 is a wasteful number, since it uses less digits than its factorization.

1321001100102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21852.

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

Adding to 1321001100102 its reverse (2010011001231), we get a palindrome (3331012101333).

The spelling of 1321001100102 in words is "one trillion, three hundred twenty-one billion, one million, one hundred thousand, one hundred two".