123345113636 has 6 divisors (see below), whose sum is σ = 215853948870. Its totient is φ = 61672556816.

The previous prime is 123345113599. The next prime is 123345113641. The reversal of 123345113636 is 636311543321.

It can be written as a sum of positive squares in only one way, i.e., 122425811236 + 919302400 = 349894^2 + 30320^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 123345113636.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15418139201 + ... + 15418139208.

It is an arithmetic number, because the mean of its divisors is an integer number (35975658145).

Almost surely, 2^123345113636 is an apocalyptic number.

It is an amenable number.

123345113636 is a deficient number, since it is larger than the sum of its proper divisors (92508835234).

123345113636 is a wasteful number, since it uses less digits than its factorization.

123345113636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30836278413 (or 30836278411 counting only the distinct ones).

The product of its digits is 116640, while the sum is 38.

Adding to 123345113636 its reverse (636311543321), we get a palindrome (759656656957).

The spelling of 123345113636 in words is "one hundred twenty-three billion, three hundred forty-five million, one hundred thirteen thousand, six hundred thirty-six".