1132121201 has 4 divisors (see below), whose sum is σ = 1136330100. Its totient is φ = 1127912304.

The previous prime is 1132121189. The next prime is 1132121231. The reversal of 1132121201 is 1021212311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1021212311 = 7 ⋅145887473.

It can be written as a sum of positive squares in 2 ways, for example, as 37834801 + 1094286400 = 6151^2 + 33080^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1132121201 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1132121231) 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, 2104046 + ... + 2104583.

It is an arithmetic number, because the mean of its divisors is an integer number (284082525).

Almost surely, 2^1132121201 is an apocalyptic number.

It is an amenable number.

1132121201 is a deficient number, since it is larger than the sum of its proper divisors (4208899).

1132121201 is an equidigital number, since it uses as much as digits as its factorization.

1132121201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4208898.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 1132121201 is about 33647.0087972170. The cubic root of 1132121201 is about 1042.2317707673.

Adding to 1132121201 its reverse (1021212311), we get a palindrome (2153333512).

The spelling of 1132121201 in words is "one billion, one hundred thirty-two million, one hundred twenty-one thousand, two hundred one".