1203201320 has 16 divisors (see below), whose sum is σ = 2707203060. Its totient is φ = 481280512.

The previous prime is 1203201313. The next prime is 1203201331. The reversal of 1203201320 is 231023021.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1174707076 + 28494244 = 34274^2 + 5338^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1203201295 and 1203201304.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15039977 + ... + 15040056.

Almost surely, 2^1203201320 is an apocalyptic number.

1203201320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1203201320 is an abundant number, since it is smaller than the sum of its proper divisors (1504001740).

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

1203201320 is a wasteful number, since it uses less digits than its factorization.

1203201320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30080044 (or 30080040 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1203201320 is about 34687.1924490870. The cubic root of 1203201320 is about 1063.6027051378.

Adding to 1203201320 its reverse (231023021), we get a palindrome (1434224341).

The spelling of 1203201320 in words is "one billion, two hundred three million, two hundred one thousand, three hundred twenty".