31311012102203 has 8 divisors (see below), whose sum is σ = 31626859425840. Its totient is φ = 30995594798080.

The previous prime is 31311012102193. The next prime is 31311012102217. The reversal of 31311012102203 is 30220121011313.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 31311012102203 - 2¹⁰ = 31311012101179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31311012102283) 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 7 ways as a sum of consecutive naturals, for example, 107358518 + ... + 107649771.

It is an arithmetic number, because the mean of its divisors is an integer number (3953357428230).

Almost surely, 2^{31311012102203} is an apocalyptic number.

31311012102203 is a deficient number, since it is larger than the sum of its proper divisors (315847323637).

31311012102203 is a wasteful number, since it uses less digits than its factorization.

31311012102203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215009757.

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

Adding to 31311012102203 its reverse (30220121011313), we get a palindrome (61531133113516).

The spelling of 31311012102203 in words is "thirty-one trillion, three hundred eleven billion, twelve million, one hundred two thousand, two hundred three".