13662203641123 has 4 divisors (see below), whose sum is σ = 13919981068368. Its totient is φ = 13404426213880.

The previous prime is 13662203641067. The next prime is 13662203641133. The reversal of 13662203641123 is 32114630226631.

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-13662203641123 is a prime.

It is a super-2 number, since 2×13662203641123² (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 (13662203641133) 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, 128888713543 + ... + 128888713648.

It is an arithmetic number, because the mean of its divisors is an integer number (3479995267092).

Almost surely, 2^{13662203641123} is an apocalyptic number.

13662203641123 is a deficient number, since it is larger than the sum of its proper divisors (257777427245).

13662203641123 is an equidigital number, since it uses as much as digits as its factorization.

13662203641123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257777427244.

The product of its (nonzero) digits is 186624, while the sum is 40.

Adding to 13662203641123 its reverse (32114630226631), we get a palindrome (45776833867754).

The spelling of 13662203641123 in words is "thirteen trillion, six hundred sixty-two billion, two hundred three million, six hundred forty-one thousand, one hundred twenty-three".