1028312122 has 8 divisors (see below), whose sum is σ = 1542710196. Its totient is φ = 514075392.

The previous prime is 1028312119. The next prime is 1028312147. The reversal of 1028312122 is 2212138201.

It can be written as a sum of positive squares in 2 ways, for example, as 970384801 + 57927321 = 31151^2 + 7611^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1028312093 and 1028312102.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22893 + ... + 50800.

Almost surely, 2^1028312122 is an apocalyptic number.

1028312122 is a deficient number, since it is larger than the sum of its proper divisors (514398074).

1028312122 is an equidigital number, since it uses as much as digits as its factorization.

1028312122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80672.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 1028312122 is about 32067.3061232153. The cubic root of 1028312122 is about 1009.3496849520.

The spelling of 1028312122 in words is "one billion, twenty-eight million, three hundred twelve thousand, one hundred twenty-two".