1321411288 has 8 divisors (see below), whose sum is σ = 2477646180. Its totient is φ = 660705640.

The previous prime is 1321411243. The next prime is 1321411307. The reversal of 1321411288 is 8821141231.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1321411288² = 3492255584107637888, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82588198 + ... + 82588213.

Almost surely, 2^1321411288 is an apocalyptic number.

It is an amenable number.

1321411288 is a deficient number, since it is larger than the sum of its proper divisors (1156234892).

1321411288 is a wasteful number, since it uses less digits than its factorization.

1321411288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165176417 (or 165176413 counting only the distinct ones).

The product of its digits is 3072, while the sum is 31.

The square root of 1321411288 is about 36351.2212724690. The cubic root of 1321411288 is about 1097.3521127417.

The spelling of 1321411288 in words is "one billion, three hundred twenty-one million, four hundred eleven thousand, two hundred eighty-eight".