123522502452 has 96 divisors (see below), whose sum is σ = 306720691200. Its totient is φ = 38556198912.

The previous prime is 123522502429. The next prime is 123522502489. The reversal of 123522502452 is 254205225321.

It is a super-2 number, since 2×123522502452² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36446374 + ... + 36449762.

It is an arithmetic number, because the mean of its divisors is an integer number (3195007200).

Almost surely, 2^123522502452 is an apocalyptic number.

123522502452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123522502452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153360345600).

123522502452 is an abundant number, since it is smaller than the sum of its proper divisors (183198188748).

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

123522502452 is a wasteful number, since it uses less digits than its factorization.

123522502452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4265 (or 4263 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 33.

Adding to 123522502452 its reverse (254205225321), we get a palindrome (377727727773).

The spelling of 123522502452 in words is "one hundred twenty-three billion, five hundred twenty-two million, five hundred two thousand, four hundred fifty-two".