1031312131001 has 4 divisors (see below), whose sum is σ = 1031425012212. Its totient is φ = 1031199249792.

The previous prime is 1031312130983. The next prime is 1031312131013. The reversal of 1031312131001 is 1001312131301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20380417600 + 1010931713401 = 142760^2 + 1005451^2 .

It is a cyclic number.

It is not a de Polignac number, because 1031312131001 - 2¹⁰ = 1031312129977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1031312131061) 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, 56426900 + ... + 56445173.

It is an arithmetic number, because the mean of its divisors is an integer number (257856253053).

Almost surely, 2^{1031312131001} is an apocalyptic number.

It is an amenable number.

1031312131001 is a deficient number, since it is larger than the sum of its proper divisors (112881211).

1031312131001 is an equidigital number, since it uses as much as digits as its factorization.

1031312131001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112881210.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 1031312131001 its reverse (1001312131301), we get a palindrome (2032624262302).

The spelling of 1031312131001 in words is "one trillion, thirty-one billion, three hundred twelve million, one hundred thirty-one thousand, one".