111202102321123 has 16 divisors (see below), whose sum is σ = 121922167680000. Its totient is φ = 100583844007680.

The previous prime is 111202102321067. The next prime is 111202102321147. The reversal of 111202102321123 is 321123201202111.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-111202102321123 is a prime.

It is a super-2 number, since 2×111202102321123² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111202102321094 and 111202102321103.

It is not an unprimeable number, because it can be changed into a prime (111202102321153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 324223078 + ... + 324565876.

It is an arithmetic number, because the mean of its divisors is an integer number (7620135480000).

Almost surely, 2^{111202102321123} is an apocalyptic number.

111202102321123 is a deficient number, since it is larger than the sum of its proper divisors (10720065358877).

111202102321123 is a wasteful number, since it uses less digits than its factorization.

111202102321123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491202.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 111202102321123 its reverse (321123201202111), we get a palindrome (432325303523234).

The spelling of 111202102321123 in words is "one hundred eleven trillion, two hundred two billion, one hundred two million, three hundred twenty-one thousand, one hundred twenty-three".