13123113132203 has 4 divisors (see below), whose sum is σ = 13123237255080. Its totient is φ = 13122989009328.

The previous prime is 13123113132197. The next prime is 13123113132247. The reversal of 13123113132203 is 30223131132131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13123113132203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13123113132403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61902713 + ... + 62114346.

It is an arithmetic number, because the mean of its divisors is an integer number (3280809313770).

Almost surely, 2^{13123113132203} is an apocalyptic number.

13123113132203 is a deficient number, since it is larger than the sum of its proper divisors (124122877).

13123113132203 is a wasteful number, since it uses less digits than its factorization.

13123113132203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124122876.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 13123113132203 its reverse (30223131132131), we get a palindrome (43346244264334).

The spelling of 13123113132203 in words is "thirteen trillion, one hundred twenty-three billion, one hundred thirteen million, one hundred thirty-two thousand, two hundred three".