123363505236 has 24 divisors (see below), whose sum is σ = 291316231584. Its totient is φ = 40625732320.

The previous prime is 123363505231. The next prime is 123363505247. The reversal of 123363505236 is 632505363321.

It is a happy number.

It is a super-2 number, since 2×123363505236² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123363505194 and 123363505203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123363505231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61928475 + ... + 61930466.

It is an arithmetic number, because the mean of its divisors is an integer number (12138176316).

Almost surely, 2^123363505236 is an apocalyptic number.

It is an amenable number.

123363505236 is an abundant number, since it is smaller than the sum of its proper divisors (167952726348).

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

123363505236 is a wasteful number, since it uses less digits than its factorization.

123363505236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123859031 (or 123859029 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 39.

Adding to 123363505236 its reverse (632505363321), we get a palindrome (755868868557).

The spelling of 123363505236 in words is "one hundred twenty-three billion, three hundred sixty-three million, five hundred five thousand, two hundred thirty-six".