1303121211203 has 4 divisors (see below), whose sum is σ = 1489281384240. Its totient is φ = 1116961038168.

The previous prime is 1303121211173. The next prime is 1303121211211. The reversal of 1303121211203 is 3021121213031.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1303121211203 - 2²² = 1303117016899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1303121211703) 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, 93080086508 + ... + 93080086521.

It is an arithmetic number, because the mean of its divisors is an integer number (372320346060).

Almost surely, 2^{1303121211203} is an apocalyptic number.

1303121211203 is a deficient number, since it is larger than the sum of its proper divisors (186160173037).

1303121211203 is an equidigital number, since it uses as much as digits as its factorization.

1303121211203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186160173036.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1303121211203 its reverse (3021121213031), we get a palindrome (4324242424234).

The spelling of 1303121211203 in words is "one trillion, three hundred three billion, one hundred twenty-one million, two hundred eleven thousand, two hundred three".