13202131121123 has 16 divisors (see below), whose sum is σ = 15241365694656. Its totient is φ = 11201459619840.

The previous prime is 13202131121119. The next prime is 13202131121129. The reversal of 13202131121123 is 32112113120231.

It is a happy number.

It is not a de Polignac number, because 13202131121123 - 2² = 13202131121119 is a prime.

It is a super-2 number, since 2×13202131121123² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13202131121129) 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 15 ways as a sum of consecutive naturals, for example, 10184438 + ... + 11407323.

It is an arithmetic number, because the mean of its divisors is an integer number (952585355916).

Almost surely, 2^{13202131121123} is an apocalyptic number.

13202131121123 is a deficient number, since it is larger than the sum of its proper divisors (2039234573533).

13202131121123 is a wasteful number, since it uses less digits than its factorization.

13202131121123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21592654.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 13202131121123 its reverse (32112113120231), we get a palindrome (45314244241354).

The spelling of 13202131121123 in words is "thirteen trillion, two hundred two billion, one hundred thirty-one million, one hundred twenty-one thousand, one hundred twenty-three".