3111312201203 has 4 divisors (see below), whose sum is σ = 3120544581960. Its totient is φ = 3102079820448.

The previous prime is 3111312201157. The next prime is 3111312201287. The reversal of 3111312201203 is 3021022131113.

It is a happy number.

3111312201203 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 3111312201203 - 2⁶ = 3111312201139 is a prime.

It is a super-2 number, since 2×3111312201203² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3111312201293) 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, 4616189873 + ... + 4616190546.

It is an arithmetic number, because the mean of its divisors is an integer number (780136145490).

Almost surely, 2^{3111312201203} is an apocalyptic number.

3111312201203 is a deficient number, since it is larger than the sum of its proper divisors (9232380757).

3111312201203 is an equidigital number, since it uses as much as digits as its factorization.

3111312201203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9232380756.

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

Adding to 3111312201203 its reverse (3021022131113), we get a palindrome (6132334332316).

The spelling of 3111312201203 in words is "three trillion, one hundred eleven billion, three hundred twelve million, two hundred one thousand, two hundred three".