13123605316620 has 96 divisors (see below), whose sum is σ = 36822460586688. Its totient is φ = 3492362739712.

The previous prime is 13123605316607. The next prime is 13123605316621. The reversal of 13123605316620 is 2661350632131.

It is not an unprimeable number, because it can be changed into a prime (13123605316621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55747402 + ... + 55982318.

It is an arithmetic number, because the mean of its divisors is an integer number (383567297778).

Almost surely, 2^{13123605316620} is an apocalyptic number.

13123605316620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13123605316620 is an abundant number, since it is smaller than the sum of its proper divisors (23698855270068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13123605316620 is a wasteful number, since it uses less digits than its factorization.

13123605316620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236859 (or 236857 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 39.

Adding to 13123605316620 its reverse (2661350632131), we get a palindrome (15784955948751).

The spelling of 13123605316620 in words is "thirteen trillion, one hundred twenty-three billion, six hundred five million, three hundred sixteen thousand, six hundred twenty".