1211231332 has 6 divisors (see below), whose sum is σ = 2119654838. Its totient is φ = 605615664.

The previous prime is 1211231309. The next prime is 1211231339. The reversal of 1211231332 is 2331321121.

It can be written as a sum of positive squares in only one way, i.e., 1184461056 + 26770276 = 34416^2 + 5174^2 .

It is not an unprimeable number, because it can be changed into a prime (1211231339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151403913 + ... + 151403920.

Almost surely, 2^1211231332 is an apocalyptic number.

It is an amenable number.

1211231332 is a deficient number, since it is larger than the sum of its proper divisors (908423506).

1211231332 is a wasteful number, since it uses less digits than its factorization.

1211231332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302807837 (or 302807835 counting only the distinct ones).

The product of its digits is 216, while the sum is 19.

The square root of 1211231332 is about 34802.7489144177. The cubic root of 1211231332 is about 1065.9635770708.

Adding to 1211231332 its reverse (2331321121), we get a palindrome (3542552453).

The spelling of 1211231332 in words is "one billion, two hundred eleven million, two hundred thirty-one thousand, three hundred thirty-two".