123652210136 has 64 divisors (see below), whose sum is σ = 291422638080. Its totient is φ = 47876549760.

The previous prime is 123652210133. The next prime is 123652210139. The reversal of 123652210136 is 631012256321.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (123652210133) and next prime (123652210139).

It is a super-2 number, since 2×123652210136² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123652210133) 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 15 ways as a sum of consecutive naturals, for example, 1772720 + ... + 1841151.

It is an arithmetic number, because the mean of its divisors is an integer number (4553478720).

Almost surely, 2^123652210136 is an apocalyptic number.

It is an amenable number.

123652210136 is an abundant number, since it is smaller than the sum of its proper divisors (167770427944).

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

123652210136 is a wasteful number, since it uses less digits than its factorization.

123652210136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3613944 (or 3613940 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

Adding to 123652210136 its reverse (631012256321), we get a palindrome (754664466457).

The spelling of 123652210136 in words is "one hundred twenty-three billion, six hundred fifty-two million, two hundred ten thousand, one hundred thirty-six".