1201330403 has 32 divisors (see below), whose sum is σ = 1514688000. Its totient is φ = 946759968.

The previous prime is 1201330379. The next prime is 1201330433. The reversal of 1201330403 is 3040331021.

It is a happy number.

It is not a de Polignac number, because 1201330403 - 2⁸ = 1201330147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1201330433) 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 31 ways as a sum of consecutive naturals, for example, 1868000 + ... + 1868642.

It is an arithmetic number, because the mean of its divisors is an integer number (47334000).

Almost surely, 2^1201330403 is an apocalyptic number.

1201330403 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1201330403 is a deficient number, since it is larger than the sum of its proper divisors (313357597).

1201330403 is an equidigital number, since it uses as much as digits as its factorization.

1201330403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1096 (or 1082 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1201330403 is about 34660.2135452164. The cubic root of 1201330403 is about 1063.0511364061.

Adding to 1201330403 its reverse (3040331021), we get a palindrome (4241661424).

The spelling of 1201330403 in words is "one billion, two hundred one million, three hundred thirty thousand, four hundred three".