13130311202123 has 4 divisors (see below), whose sum is σ = 13145961156720. Its totient is φ = 13114661247528.

The previous prime is 13130311202119. The next prime is 13130311202143. The reversal of 13130311202123 is 32120211303131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13130311202123 - 2² = 13130311202119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13130311202143) 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, 7824976040 + ... + 7824977717.

It is an arithmetic number, because the mean of its divisors is an integer number (3286490289180).

Almost surely, 2^{13130311202123} is an apocalyptic number.

13130311202123 is a deficient number, since it is larger than the sum of its proper divisors (15649954597).

13130311202123 is an equidigital number, since it uses as much as digits as its factorization.

13130311202123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15649954596.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 13130311202123 its reverse (32120211303131), we get a palindrome (45250522505254).

The spelling of 13130311202123 in words is "thirteen trillion, one hundred thirty billion, three hundred eleven million, two hundred two thousand, one hundred twenty-three".