1131152201 has 2 divisors, whose sum is σ = 1131152202. Its totient is φ = 1131152200.

The previous prime is 1131152177. The next prime is 1131152203. The reversal of 1131152201 is 1022511311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 857084176 + 274068025 = 29276^2 + 16555^2 .

It is an emirp because it is prime and its reverse (1022511311) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1131152201 is a prime.

Together with 1131152203, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1131152201.

It is not a weakly prime, because it can be changed into another prime (1131152203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565576100 + 565576101.

It is an arithmetic number, because the mean of its divisors is an integer number (565576101).

Almost surely, 2^1131152201 is an apocalyptic number.

It is an amenable number.

1131152201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131152201 is an equidigital number, since it uses as much as digits as its factorization.

1131152201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60, while the sum is 17.

The square root of 1131152201 is about 33632.6062177762. The cubic root of 1131152201 is about 1041.9343318069.

Adding to 1131152201 its reverse (1022511311), we get a palindrome (2153663512).

The spelling of 1131152201 in words is "one billion, one hundred thirty-one million, one hundred fifty-two thousand, two hundred one".