1201031211203 has 4 divisors (see below), whose sum is σ = 1201082523480. Its totient is φ = 1200979898928.

The previous prime is 1201031211173. The next prime is 1201031211223. The reversal of 1201031211203 is 3021121301021.

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 1201031211203 - 2¹⁶ = 1201031145667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201031211223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25621013 + ... + 25667846.

It is an arithmetic number, because the mean of its divisors is an integer number (300270630870).

Almost surely, 2^{1201031211203} is an apocalyptic number.

1201031211203 is a deficient number, since it is larger than the sum of its proper divisors (51312277).

1201031211203 is an equidigital number, since it uses as much as digits as its factorization.

1201031211203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51312276.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1201031211203 its reverse (3021121301021), we get a palindrome (4222152512224).

The spelling of 1201031211203 in words is "one trillion, two hundred one billion, thirty-one million, two hundred eleven thousand, two hundred three".