1012321133 has 2 divisors, whose sum is σ = 1012321134. Its totient is φ = 1012321132.

The previous prime is 1012321129. The next prime is 1012321139. The reversal of 1012321133 is 3311232101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 549339844 + 462981289 = 23438^2 + 21517^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012321133 - 2² = 1012321129 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 (1012321139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506160566 + 506160567.

It is an arithmetic number, because the mean of its divisors is an integer number (506160567).

Almost surely, 2^1012321133 is an apocalyptic number.

It is an amenable number.

1012321133 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012321133 is an equidigital number, since it uses as much as digits as its factorization.

1012321133 is an evil number, because the sum of its binary digits is even.

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

The square root of 1012321133 is about 31816.9944055060. The cubic root of 1012321133 is about 1004.0902910417.

Adding to 1012321133 its reverse (3311232101), we get a palindrome (4323553234).

The spelling of 1012321133 in words is "one billion, twelve million, three hundred twenty-one thousand, one hundred thirty-three".