1021312204 has 24 divisors (see below), whose sum is σ = 1955394000. Its totient is φ = 462895680.

The previous prime is 1021312177. The next prime is 1021312219. The reversal of 1021312204 is 4022131201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17899 + ... + 48610.

It is an arithmetic number, because the mean of its divisors is an integer number (81474750).

Almost surely, 2^1021312204 is an apocalyptic number.

It is an amenable number.

1021312204 is a deficient number, since it is larger than the sum of its proper divisors (934081796).

1021312204 is a wasteful number, since it uses less digits than its factorization.

1021312204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66873 (or 66871 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1021312204 is about 31957.9755929564. The cubic root of 1021312204 is about 1007.0541894026.

Adding to 1021312204 its reverse (4022131201), we get a palindrome (5043443405).

The spelling of 1021312204 in words is "one billion, twenty-one million, three hundred twelve thousand, two hundred four".