1031130331123 has 4 divisors (see below), whose sum is σ = 1031138934408. Its totient is φ = 1031121727840.

The previous prime is 1031130331109. The next prime is 1031130331129. The reversal of 1031130331123 is 3211330311301.

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 1031130331123 - 2¹³ = 1031130322931 is a prime.

It is a super-2 number, since 2×1031130331123² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1031130331094 and 1031130331103.

It is not an unprimeable number, because it can be changed into a prime (1031130331129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4119286 + ... + 4362427.

It is an arithmetic number, because the mean of its divisors is an integer number (257784733602).

Almost surely, 2^{1031130331123} is an apocalyptic number.

1031130331123 is a deficient number, since it is larger than the sum of its proper divisors (8603285).

1031130331123 is an equidigital number, since it uses as much as digits as its factorization.

1031130331123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8603284.

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

Adding to 1031130331123 its reverse (3211330311301), we get a palindrome (4242460642424).

The spelling of 1031130331123 in words is "one trillion, thirty-one billion, one hundred thirty million, three hundred thirty-one thousand, one hundred twenty-three".