3131311452103 has 4 divisors (see below), whose sum is σ = 3138016616280. Its totient is φ = 3124606287928.

The previous prime is 3131311452097. The next prime is 3131311452169. The reversal of 3131311452103 is 3012541131313.

It is a happy number.

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 3131311452103 - 2⁹ = 3131311451591 is a prime.

It is a super-2 number, since 2×3131311452103² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3131311452403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3352581388 + ... + 3352582321.

It is an arithmetic number, because the mean of its divisors is an integer number (784504154070).

Almost surely, 2^{3131311452103} is an apocalyptic number.

3131311452103 is a deficient number, since it is larger than the sum of its proper divisors (6705164177).

3131311452103 is an equidigital number, since it uses as much as digits as its factorization.

3131311452103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6705164176.

The product of its (nonzero) digits is 3240, while the sum is 28.

Adding to 3131311452103 its reverse (3012541131313), we get a palindrome (6143852583416).

The spelling of 3131311452103 in words is "three trillion, one hundred thirty-one billion, three hundred eleven million, four hundred fifty-two thousand, one hundred three".