13123012012303 has 4 divisors (see below), whose sum is σ = 13252942824408. Its totient is φ = 12993081200200.

The previous prime is 13123012012289. The next prime is 13123012012351. The reversal of 13123012012303 is 30321021032131.

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-13123012012303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13123012022303) 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, 64965405901 + ... + 64965406102.

It is an arithmetic number, because the mean of its divisors is an integer number (3313235706102).

Almost surely, 2^{13123012012303} is an apocalyptic number.

13123012012303 is a deficient number, since it is larger than the sum of its proper divisors (129930812105).

13123012012303 is a wasteful number, since it uses less digits than its factorization.

13123012012303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129930812104.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 13123012012303 its reverse (30321021032131), we get a palindrome (43444033044434).

The spelling of 13123012012303 in words is "thirteen trillion, one hundred twenty-three billion, twelve million, twelve thousand, three hundred three".