123453535552 has 28 divisors (see below), whose sum is σ = 255629334816. Its totient is φ = 59042994560.

The previous prime is 123453535501. The next prime is 123453535559. The reversal of 123453535552 is 255535354321.

It is a junction number, because it is equal to n+sod(n) for n = 123453535499 and 123453535508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123453535559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41932474 + ... + 41935417.

Almost surely, 2^123453535552 is an apocalyptic number.

It is an amenable number.

123453535552 is an abundant number, since it is smaller than the sum of its proper divisors (132175799264).

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

123453535552 is an equidigital number, since it uses as much as digits as its factorization.

123453535552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83867926 (or 83867916 counting only the distinct ones).

The product of its digits is 1350000, while the sum is 43.

Adding to 123453535552 its reverse (255535354321), we get a palindrome (378988889873).

The spelling of 123453535552 in words is "one hundred twenty-three billion, four hundred fifty-three million, five hundred thirty-five thousand, five hundred fifty-two".