1021322312 has 32 divisors (see below), whose sum is σ = 1938924120. Its totient is φ = 504299520.

The previous prime is 1021322297. The next prime is 1021322317. The reversal of 1021322312 is 2132231201.

It can be written as a sum of positive squares in 4 ways, for example, as 1021058116 + 264196 = 31954^2 + 514^2 .

It is not an unprimeable number, because it can be changed into a prime (1021322317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 446612 + ... + 448892.

Almost surely, 2^1021322312 is an apocalyptic number.

It is an amenable number.

1021322312 is a deficient number, since it is larger than the sum of its proper divisors (917601808).

1021322312 is a wasteful number, since it uses less digits than its factorization.

1021322312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2961 (or 2957 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1021322312 is about 31958.1337377513. The cubic root of 1021322312 is about 1007.0575116875.

Adding to 1021322312 its reverse (2132231201), we get a palindrome (3153553513).

The spelling of 1021322312 in words is "one billion, twenty-one million, three hundred twenty-two thousand, three hundred twelve".