13123320214431 has 24 divisors (see below), whose sum is σ = 20390184781824. Its totient is φ = 7485906904560.

The previous prime is 13123320214427. The next prime is 13123320214493. The reversal of 13123320214431 is 13441202332131.

It is not a de Polignac number, because 13123320214431 - 2² = 13123320214427 is a prime.

It is a super-2 number, since 2×13123320214431² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13123320214231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78089695 + ... + 78257568.

It is an arithmetic number, because the mean of its divisors is an integer number (849591032576).

Almost surely, 2^{13123320214431} is an apocalyptic number.

13123320214431 is a deficient number, since it is larger than the sum of its proper divisors (7266864567393).

13123320214431 is a wasteful number, since it uses less digits than its factorization.

13123320214431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156347851 (or 156347844 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

Adding to 13123320214431 its reverse (13441202332131), we get a palindrome (26564522546562).

The spelling of 13123320214431 in words is "thirteen trillion, one hundred twenty-three billion, three hundred twenty million, two hundred fourteen thousand, four hundred thirty-one".