1203403201 has 54 divisors (see below), whose sum is σ = 1667562246. Its totient is φ = 864864000.

The previous prime is 1203403199. The next prime is 1203403219. The reversal of 1203403201 is 1023043021.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 157527601 + 1045875600 = 12551^2 + 32340^2 .

It is not a de Polignac number, because 1203403201 - 2¹ = 1203403199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1203403231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 1001401 + ... + 1002601.

Almost surely, 2^1203403201 is an apocalyptic number.

1203403201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1203403201 is a deficient number, since it is larger than the sum of its proper divisors (464159045).

1203403201 is a wasteful number, since it uses less digits than its factorization.

1203403201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1263 (or 1232 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1203403201 is about 34690.1023492292. The cubic root of 1203403201 is about 1063.6621878878.

Adding to 1203403201 its reverse (1023043021), we get a palindrome (2226446222).

It can be divided in two parts, 1203 and 403201, that added together give a palindrome (404404).

The spelling of 1203403201 in words is "one billion, two hundred three million, four hundred three thousand, two hundred one".