1031312131333 has 4 divisors (see below), whose sum is σ = 1125067779648. Its totient is φ = 937556483020.

The previous prime is 1031312131319. The next prime is 1031312131337. The reversal of 1031312131333 is 3331312131301.

1031312131333 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1031312131333 - 2¹⁷ = 1031312000261 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1031312131298 and 1031312131307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031312131337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46877824141 + ... + 46877824162.

It is an arithmetic number, because the mean of its divisors is an integer number (281266944912).

Almost surely, 2^{1031312131333} is an apocalyptic number.

It is an amenable number.

1031312131333 is a deficient number, since it is larger than the sum of its proper divisors (93755648315).

1031312131333 is an equidigital number, since it uses as much as digits as its factorization.

1031312131333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93755648314.

The product of its (nonzero) digits is 1458, while the sum is 25.

Adding to 1031312131333 its reverse (3331312131301), we get a palindrome (4362624262634).

The spelling of 1031312131333 in words is "one trillion, thirty-one billion, three hundred twelve million, one hundred thirty-one thousand, three hundred thirty-three".