2101113312102 has 24 divisors (see below), whose sum is σ = 5202756773136. Its totient is φ = 600318089136.

The previous prime is 2101113312091. The next prime is 2101113312107. The reversal of 2101113312102 is 2012133111012.

2101113312102 is a `hidden beast` number, since 2 + 10 + 111 + 331 + 210 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101113312107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8337751113 + ... + 8337751364.

It is an arithmetic number, because the mean of its divisors is an integer number (216781532214).

Almost surely, 2^{2101113312102} is an apocalyptic number.

2101113312102 is an abundant number, since it is smaller than the sum of its proper divisors (3101643461034).

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

2101113312102 is a wasteful number, since it uses less digits than its factorization.

2101113312102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16675502492 (or 16675502489 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 2101113312102 its reverse (2012133111012), we get a palindrome (4113246423114).

The spelling of 2101113312102 in words is "two trillion, one hundred one billion, one hundred thirteen million, three hundred twelve thousand, one hundred two".