1320005122 has 16 divisors (see below), whose sum is σ = 2051370360. Its totient is φ = 636283648.

The previous prime is 1320005111. The next prime is 1320005131. The reversal of 1320005122 is 2215000231.

It can be written as a sum of positive squares in 4 ways, for example, as 1247431761 + 72573361 = 35319^2 + 8519^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1320005096 and 1320005105.

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, 22458 + ... + 56074.

Almost surely, 2^1320005122 is an apocalyptic number.

1320005122 is a deficient number, since it is larger than the sum of its proper divisors (731365238).

1320005122 is a wasteful number, since it uses less digits than its factorization.

1320005122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34325.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1320005122 is about 36331.8747383066. The cubic root of 1320005122 is about 1096.9627293321.

Adding to 1320005122 its reverse (2215000231), we get a palindrome (3535005353).

The spelling of 1320005122 in words is "one billion, three hundred twenty million, five thousand, one hundred twenty-two".