21113103202306 has 16 divisors (see below), whose sum is σ = 32258373590016. Its totient is φ = 10361449627056.

The previous prime is 21113103202277. The next prime is 21113103202381. The reversal of 21113103202306 is 60320230131112.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 284368066 + ... + 284442301.

It is an arithmetic number, because the mean of its divisors is an integer number (2016148349376).

Almost surely, 2^{21113103202306} is an apocalyptic number.

21113103202306 is a deficient number, since it is larger than the sum of its proper divisors (11145270387710).

21113103202306 is a wasteful number, since it uses less digits than its factorization.

21113103202306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568810713.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 21113103202306 its reverse (60320230131112), we get a palindrome (81433333333418).

The spelling of 21113103202306 in words is "twenty-one trillion, one hundred thirteen billion, one hundred three million, two hundred two thousand, three hundred six".