1301221203 has 8 divisors (see below), whose sum is σ = 1735128528. Its totient is φ = 867397344.

The previous prime is 1301221183. The next prime is 1301221211. The reversal of 1301221203 is 3021221031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1301221203 - 2⁵ = 1301221171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1301221303) 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 7 ways as a sum of consecutive naturals, for example, 47725 + ... + 69857.

It is an arithmetic number, because the mean of its divisors is an integer number (216891066).

Almost surely, 2^1301221203 is an apocalyptic number.

1301221203 is a deficient number, since it is larger than the sum of its proper divisors (433907325).

1301221203 is a wasteful number, since it uses less digits than its factorization.

1301221203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41733.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1301221203 is about 36072.4438179617. The cubic root of 1301221203 is about 1091.7345228402.

Adding to 1301221203 its reverse (3021221031), we get a palindrome (4322442234).

The spelling of 1301221203 in words is "one billion, three hundred one million, two hundred twenty-one thousand, two hundred three".