1001310120031 has 4 divisors (see below), whose sum is σ = 1078333975432. Its totient is φ = 924286264632.

The previous prime is 1001310119987. The next prime is 1001310120047. The reversal of 1001310120031 is 1300210131001.

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 1001310120031 - 2¹⁵ = 1001310087263 is a prime.

It is a super-2 number, since 2×1001310120031² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 77023855387 = 1001310120031 / (1 + 0 + 0 + 1 + 3 + 1 + 0 + 1 + 2 + 0 + 0 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1001310119993 and 1001310120020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001310100031) 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, 38511927681 + ... + 38511927706.

It is an arithmetic number, because the mean of its divisors is an integer number (269583493858).

Almost surely, 2^{1001310120031} is an apocalyptic number.

1001310120031 is a deficient number, since it is larger than the sum of its proper divisors (77023855401).

1001310120031 is an equidigital number, since it uses as much as digits as its factorization.

1001310120031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77023855400.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 1001310120031 its reverse (1300210131001), we get a palindrome (2301520251032).

The spelling of 1001310120031 in words is "one trillion, one billion, three hundred ten million, one hundred twenty thousand, thirty-one".