1031312310331 has 16 divisors (see below), whose sum is σ = 1065693291520. Its totient is φ = 997406706240.

The previous prime is 1031312310313. The next prime is 1031312310359. The reversal of 1031312310331 is 1330132131301.

It is a cyclic number.

It is not a de Polignac number, because 1031312310331 - 2³³ = 1022722375739 is a prime.

It is a super-2 number, since 2×1031312310331² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1031312310631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44982751 + ... + 45005671.

It is an arithmetic number, because the mean of its divisors is an integer number (66605830720).

Almost surely, 2^{1031312310331} is an apocalyptic number.

1031312310331 is a deficient number, since it is larger than the sum of its proper divisors (34380981189).

1031312310331 is a wasteful number, since it uses less digits than its factorization.

1031312310331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33226.

The product of its (nonzero) digits is 486, while the sum is 22.

Adding to 1031312310331 its reverse (1330132131301), we get a palindrome (2361444441632).

The spelling of 1031312310331 in words is "one trillion, thirty-one billion, three hundred twelve million, three hundred ten thousand, three hundred thirty-one".