2121323131102 has 48 divisors (see below), whose sum is σ = 3779587828800. Its totient is φ = 890138979072.

The previous prime is 2121323131043. The next prime is 2121323131111. The reversal of 2121323131102 is 2011313231212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 102102 + ... + 2062297.

It is an arithmetic number, because the mean of its divisors is an integer number (78741413100).

Almost surely, 2^{2121323131102} is an apocalyptic number.

2121323131102 is a deficient number, since it is larger than the sum of its proper divisors (1658264697698).

2121323131102 is a wasteful number, since it uses less digits than its factorization.

2121323131102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2164625 (or 2164618 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 2121323131102 its reverse (2011313231212), we get a palindrome (4132636362314).

The spelling of 2121323131102 in words is "two trillion, one hundred twenty-one billion, three hundred twenty-three million, one hundred thirty-one thousand, one hundred two".