1031113133 has 2 divisors, whose sum is σ = 1031113134. Its totient is φ = 1031113132.

The previous prime is 1031113081. The next prime is 1031113157. The reversal of 1031113133 is 3313111301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 810085444 + 221027689 = 28462^2 + 14867^2 .

It is a cyclic number.

It is not a de Polignac number, because 1031113133 - 2¹⁰ = 1031112109 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1031113933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515556566 + 515556567.

It is an arithmetic number, because the mean of its divisors is an integer number (515556567).

Almost surely, 2^1031113133 is an apocalyptic number.

It is an amenable number.

1031113133 is a deficient number, since it is larger than the sum of its proper divisors (1).

1031113133 is an equidigital number, since it uses as much as digits as its factorization.

1031113133 is an evil number, because the sum of its binary digits is even.

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

The square root of 1031113133 is about 32110.9503596515. The cubic root of 1031113133 is about 1010.2653072267.

Adding to 1031113133 its reverse (3313111301), we get a palindrome (4344224434).

The spelling of 1031113133 in words is "one billion, thirty-one million, one hundred thirteen thousand, one hundred thirty-three".