1020312322 has 4 divisors (see below), whose sum is σ = 1530468486. Its totient is φ = 510156160.

The previous prime is 1020312283. The next prime is 1020312353. The reversal of 1020312322 is 2232130201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 800946601 + 219365721 = 28301^2 + 14811^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1020312296 and 1020312305.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255078079 + ... + 255078082.

Almost surely, 2^1020312322 is an apocalyptic number.

1020312322 is a deficient number, since it is larger than the sum of its proper divisors (510156164).

1020312322 is an equidigital number, since it uses as much as digits as its factorization.

1020312322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510156163.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1020312322 is about 31942.3280616802. The cubic root of 1020312322 is about 1006.7254410421.

Adding to 1020312322 its reverse (2232130201), we get a palindrome (3252442523).

The spelling of 1020312322 in words is "one billion, twenty million, three hundred twelve thousand, three hundred twenty-two".