13123332542402 has 64 divisors (see below), whose sum is σ = 21645721964160. Its totient is φ = 5946072883200.

The previous prime is 13123332542393. The next prime is 13123332542407. The reversal of 13123332542402 is 20424523332131.

It is a super-2 number, since 2×13123332542402² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13123332542407) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15764702 + ... + 16576262.

It is an arithmetic number, because the mean of its divisors is an integer number (338214405690).

Almost surely, 2^{13123332542402} is an apocalyptic number.

13123332542402 is a deficient number, since it is larger than the sum of its proper divisors (8522389421758).

13123332542402 is a wasteful number, since it uses less digits than its factorization.

13123332542402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811827.

The product of its (nonzero) digits is 103680, while the sum is 35.

Adding to 13123332542402 its reverse (20424523332131), we get a palindrome (33547855874533).

The spelling of 13123332542402 in words is "thirteen trillion, one hundred twenty-three billion, three hundred thirty-two million, five hundred forty-two thousand, four hundred two".