1322023018 has 4 divisors (see below), whose sum is σ = 1983034530. Its totient is φ = 661011508.

The previous prime is 1322023013. The next prime is 1322023019. The reversal of 1322023018 is 8103202231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8103202231 = 44563 ⋅181837.

It can be written as a sum of positive squares in only one way, i.e., 1279993729 + 42029289 = 35777^2 + 6483^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1322023018.

It is not an unprimeable number, because it can be changed into a prime (1322023013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330505753 + ... + 330505756.

Almost surely, 2^1322023018 is an apocalyptic number.

1322023018 is a deficient number, since it is larger than the sum of its proper divisors (661011512).

1322023018 is an equidigital number, since it uses as much as digits as its factorization.

1322023018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661011511.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 1322023018 is about 36359.6344591086. The cubic root of 1322023018 is about 1097.5214215338.

Adding to 1322023018 its reverse (8103202231), we get a palindrome (9425225249).

The spelling of 1322023018 in words is "one billion, three hundred twenty-two million, twenty-three thousand, eighteen".