1203568128 has 120 divisors (see below), whose sum is σ = 3969911088. Its totient is φ = 343867392.

The previous prime is 1203568117. The next prime is 1203568183. The reversal of 1203568128 is 8218653021.

It is a happy number.

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 = 1203568092 and 1203568101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13600 + ... + 50912.

Almost surely, 2^1203568128 is an apocalyptic number.

1203568128 is a gapful number since it is divisible by the number (18) 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 1203568128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1984955544).

1203568128 is an abundant number, since it is smaller than the sum of its proper divisors (2766342960).

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

1203568128 is an equidigital number, since it uses as much as digits as its factorization.

1203568128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37344 (or 37325 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 1203568128 is about 34692.4794155736. The cubic root of 1203568128 is about 1063.7107774766.

The spelling of 1203568128 in words is "one billion, two hundred three million, five hundred sixty-eight thousand, one hundred twenty-eight".