1203565216 has 24 divisors (see below), whose sum is σ = 2708022240. Its totient is φ = 515813568.

The previous prime is 1203565199. The next prime is 1203565219. The reversal of 1203565216 is 6125653021.

It is not an unprimeable number, because it can be changed into a prime (1203565219) 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, 2686306 + ... + 2686753.

It is an arithmetic number, because the mean of its divisors is an integer number (112834260).

Almost surely, 2^1203565216 is an apocalyptic number.

1203565216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1203565216 is an abundant number, since it is smaller than the sum of its proper divisors (1504457024).

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

1203565216 is an equidigital number, since it uses as much as digits as its factorization.

1203565216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5373076 (or 5373068 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 1203565216 is about 34692.4374467981. The cubic root of 1203565216 is about 1063.7099196029.

The spelling of 1203565216 in words is "one billion, two hundred three million, five hundred sixty-five thousand, two hundred sixteen".