123603455052 has 144 divisors (see below), whose sum is σ = 391170124800. Its totient is φ = 31970292480.

The previous prime is 123603454993. The next prime is 123603455069. The reversal of 123603455052 is 250554306321.

123603455052 is a `hidden beast` number, since 1 + 2 + 3 + 603 + 45 + 5 + 0 + 5 + 2 = 666.

It is a super-3 number, since 3×123603455052³ (a number of 34 digits) contains 333 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 123603454998 and 123603455016.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 569224 + ... + 755792.

It is an arithmetic number, because the mean of its divisors is an integer number (2716459200).

Almost surely, 2^123603455052 is an apocalyptic number.

123603455052 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 123603455052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195585062400).

123603455052 is an abundant number, since it is smaller than the sum of its proper divisors (267566669748).

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

123603455052 is a wasteful number, since it uses less digits than its factorization.

123603455052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186836 (or 186831 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

The spelling of 123603455052 in words is "one hundred twenty-three billion, six hundred three million, four hundred fifty-five thousand, fifty-two".