1021312104 has 32 divisors (see below), whose sum is σ = 2556244320. Its totient is φ = 340042176.

The previous prime is 1021312087. The next prime is 1021312129. The reversal of 1021312104 is 4012131201.

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, 3214 + ... + 45309.

It is an arithmetic number, because the mean of its divisors is an integer number (79882635).

Almost surely, 2^1021312104 is an apocalyptic number.

It is an amenable number.

1021312104 is an abundant number, since it is smaller than the sum of its proper divisors (1534932216).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1021312104 is a wasteful number, since it uses less digits than its factorization.

1021312104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49409 (or 49405 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1021312104 is about 31957.9740284017. The cubic root of 1021312104 is about 1007.0541565347.

Adding to 1021312104 its reverse (4012131201), we get a palindrome (5033443305).

The spelling of 1021312104 in words is "one billion, twenty-one million, three hundred twelve thousand, one hundred four".