3131011211243 has 16 divisors (see below), whose sum is σ = 3294172578816. Its totient is φ = 2971775869920.

The previous prime is 3131011211233. The next prime is 3131011211261. The reversal of 3131011211243 is 3421121101313.

It is a cyclic number.

It is not a de Polignac number, because 3131011211243 - 2⁴ = 3131011211227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3131011211233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4265396 + ... + 4945262.

It is an arithmetic number, because the mean of its divisors is an integer number (205885786176).

Almost surely, 2^{3131011211243} is an apocalyptic number.

3131011211243 is a deficient number, since it is larger than the sum of its proper divisors (163161367573).

3131011211243 is a wasteful number, since it uses less digits than its factorization.

3131011211243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682754.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 3131011211243 its reverse (3421121101313), we get a palindrome (6552132312556).

The spelling of 3131011211243 in words is "three trillion, one hundred thirty-one billion, eleven million, two hundred eleven thousand, two hundred forty-three".