1322003120 has 20 divisors (see below), whose sum is σ = 3073657440. Its totient is φ = 528801216.

The previous prime is 1322003119. The next prime is 1322003129. The reversal of 1322003120 is 213002231.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 1322003095 and 1322003104.

It is not an unprimeable number, because it can be changed into a prime (1322003129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8262440 + ... + 8262599.

It is an arithmetic number, because the mean of its divisors is an integer number (153682872).

Almost surely, 2^1322003120 is an apocalyptic number.

1322003120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1322003120 is an abundant number, since it is smaller than the sum of its proper divisors (1751654320).

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

1322003120 is a wasteful number, since it uses less digits than its factorization.

1322003120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16525052 (or 16525046 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1322003120 is about 36359.3608304657. The cubic root of 1322003120 is about 1097.5159151771.

Adding to 1322003120 its reverse (213002231), we get a palindrome (1535005351).

The spelling of 1322003120 in words is "one billion, three hundred twenty-two million, three thousand, one hundred twenty".