1213031332 has 6 divisors (see below), whose sum is σ = 2122804838. Its totient is φ = 606515664.

The previous prime is 1213031329. The next prime is 1213031341. The reversal of 1213031332 is 2331303121.

It can be written as a sum of positive squares in only one way, i.e., 1212710976 + 320356 = 34824^2 + 566^2 .

It is an unprimeable number.

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, 151628913 + ... + 151628920.

Almost surely, 2^1213031332 is an apocalyptic number.

It is an amenable number.

1213031332 is a deficient number, since it is larger than the sum of its proper divisors (909773506).

1213031332 is a wasteful number, since it uses less digits than its factorization.

1213031332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303257837 (or 303257835 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 1213031332 is about 34828.5993401974. The cubic root of 1213031332 is about 1066.4913553464.

Adding to 1213031332 its reverse (2331303121), we get a palindrome (3544334453).

The spelling of 1213031332 in words is "one billion, two hundred thirteen million, thirty-one thousand, three hundred thirty-two".