122523235452 has 72 divisors (see below), whose sum is σ = 318936153536. Its totient is φ = 39630570624.

The previous prime is 122523235421. The next prime is 122523235453. The reversal of 122523235452 is 254532325221.

It is a happy number.

122523235452 is a `hidden beast` number, since 1 + 2 + 25 + 232 + 354 + 52 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122523235453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 373533 + ... + 620139.

Almost surely, 2^122523235452 is an apocalyptic number.

122523235452 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 122523235452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159468076768).

122523235452 is an abundant number, since it is smaller than the sum of its proper divisors (196412918084).

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

122523235452 is a wasteful number, since it uses less digits than its factorization.

122523235452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247027 (or 247022 counting only the distinct ones).

The product of its digits is 144000, while the sum is 36.

The spelling of 122523235452 in words is "one hundred twenty-two billion, five hundred twenty-three million, two hundred thirty-five thousand, four hundred fifty-two".