21113131022102 has 8 divisors (see below), whose sum is σ = 36193938895056. Its totient is φ = 9048484723752.

The previous prime is 21113131022089. The next prime is 21113131022107. The reversal of 21113131022102 is 20122013131112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21113131022107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 754040393633 + ... + 754040393660.

It is an arithmetic number, because the mean of its divisors is an integer number (4524242361882).

Almost surely, 2^{21113131022102} is an apocalyptic number.

21113131022102 is a deficient number, since it is larger than the sum of its proper divisors (15080807872954).

21113131022102 is a wasteful number, since it uses less digits than its factorization.

21113131022102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1508080787302.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 21113131022102 its reverse (20122013131112), we get a palindrome (41235144153214).

The spelling of 21113131022102 in words is "twenty-one trillion, one hundred thirteen billion, one hundred thirty-one million, twenty-two thousand, one hundred two".