3131011301111 has 4 divisors (see below), whose sum is σ = 3131016636912. Its totient is φ = 3131005965312.

The previous prime is 3131011301083. The next prime is 3131011301123. The reversal of 3131011301111 is 1111031101313.

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 3131011301111 - 2¹⁴ = 3131011284727 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3131011301111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3131011301161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1661051 + ... + 3003516.

It is an arithmetic number, because the mean of its divisors is an integer number (782754159228).

Almost surely, 2^{3131011301111} is an apocalyptic number.

3131011301111 is a deficient number, since it is larger than the sum of its proper divisors (5335801).

3131011301111 is an equidigital number, since it uses as much as digits as its factorization.

3131011301111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5335800.

The product of its (nonzero) digits is 27, while the sum is 17.

Adding to 3131011301111 its reverse (1111031101313), we get a palindrome (4242042402424).

The spelling of 3131011301111 in words is "three trillion, one hundred thirty-one billion, eleven million, three hundred one thousand, one hundred eleven".