1150231133 has 2 divisors, whose sum is σ = 1150231134. Its totient is φ = 1150231132.

The previous prime is 1150231091. The next prime is 1150231163. The reversal of 1150231133 is 3311320511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 858607204 + 291623929 = 29302^2 + 17077^2 .

It is a cyclic number.

It is not a de Polignac number, because 1150231133 - 2¹² = 1150227037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1150231163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 575115566 + 575115567.

It is an arithmetic number, because the mean of its divisors is an integer number (575115567).

Almost surely, 2^1150231133 is an apocalyptic number.

It is an amenable number.

1150231133 is a deficient number, since it is larger than the sum of its proper divisors (1).

1150231133 is an equidigital number, since it uses as much as digits as its factorization.

1150231133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 1150231133 is about 33915.0576145759. The cubic root of 1150231133 is about 1047.7597385073.

Adding to 1150231133 its reverse (3311320511), we get a palindrome (4461551644).

The spelling of 1150231133 in words is "one billion, one hundred fifty million, two hundred thirty-one thousand, one hundred thirty-three".