31203011110113 has 6 divisors (see below), whose sum is σ = 45071016047954. Its totient is φ = 20802007406736.

The previous prime is 31203011110099. The next prime is 31203011110151. The reversal of 31203011110113 is 31101111030213.

It can be written as a sum of positive squares in only one way, i.e., 31202859746304 + 151363809 = 5585952^2 + 12303^2 .

It is not a de Polignac number, because 31203011110113 - 2¹⁸ = 31203010847969 is a prime.

It is a super-2 number, since 2×31203011110113² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31203011110153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1733500617220 + ... + 1733500617237.

Almost surely, 2^{31203011110113} is an apocalyptic number.

It is an amenable number.

31203011110113 is a deficient number, since it is larger than the sum of its proper divisors (13868004937841).

31203011110113 is a wasteful number, since it uses less digits than its factorization.

31203011110113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3467001234463 (or 3467001234460 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

Adding to 31203011110113 its reverse (31101111030213), we get a palindrome (62304122140326).

The spelling of 31203011110113 in words is "thirty-one trillion, two hundred three billion, eleven million, one hundred ten thousand, one hundred thirteen".