1031322113 has 4 divisors (see below), whose sum is σ = 1031387988. Its totient is φ = 1031256240.

The previous prime is 1031322091. The next prime is 1031322133. The reversal of 1031322113 is 3112231301.

1031322113 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 brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3112231301 = 6709 ⋅463889.

It can be written as a sum of positive squares in 2 ways, for example, as 544148929 + 487173184 = 23327^2 + 22072^2 .

It is a cyclic number.

It is not a de Polignac number, because 1031322113 - 2¹² = 1031318017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1031322091 and 1031322100.

It is not an unprimeable number, because it can be changed into a prime (1031322133) 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, 5495 + ... + 45747.

It is an arithmetic number, because the mean of its divisors is an integer number (257846997).

Almost surely, 2^1031322113 is an apocalyptic number.

It is an amenable number.

1031322113 is a deficient number, since it is larger than the sum of its proper divisors (65875).

1031322113 is an equidigital number, since it uses as much as digits as its factorization.

1031322113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65874.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1031322113 is about 32114.2042249220. The cubic root of 1031322113 is about 1010.3335541777. Note that the first 3 decimals are identical.

Adding to 1031322113 its reverse (3112231301), we get a palindrome (4143553414).

The spelling of 1031322113 in words is "one billion, thirty-one million, three hundred twenty-two thousand, one hundred thirteen".