1031133113 has 4 divisors (see below), whose sum is σ = 1091788020. Its totient is φ = 970478208.

The previous prime is 1031133107. The next prime is 1031133119. The reversal of 1031133113 is 3113311301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3113311301 = 109 ⋅28562489.

It is an interprime number because it is at equal distance from previous prime (1031133107) and next prime (1031133119).

It can be written as a sum of positive squares in 2 ways, for example, as 325008784 + 706124329 = 18028^2 + 26573^2 .

It is a cyclic number.

It is not a de Polignac number, because 1031133113 - 2¹⁸ = 1030870969 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 60654889 = 1031133113 / (1 + 0 + 3 + 1 + 1 + 3 + 3 + 1 + 1 + 3).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1031133091 and 1031133100.

It is not an unprimeable number, because it can be changed into a prime (1031133119) 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, 30327428 + ... + 30327461.

It is an arithmetic number, because the mean of its divisors is an integer number (272947005).

Almost surely, 2^1031133113 is an apocalyptic number.

It is an amenable number.

1031133113 is a deficient number, since it is larger than the sum of its proper divisors (60654907).

1031133113 is an equidigital number, since it uses as much as digits as its factorization.

1031133113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60654906.

The product of its (nonzero) digits is 81, while the sum is 17.

The square root of 1031133113 is about 32111.2614669683. The cubic root of 1031133113 is about 1010.2718325276.

Adding to 1031133113 its reverse (3113311301), we get a palindrome (4144444414).

The spelling of 1031133113 in words is "one billion, thirty-one million, one hundred thirty-three thousand, one hundred thirteen".