1321147696 has 30 divisors (see below), whose sum is σ = 2813584676. Its totient is φ = 600520800.

The previous prime is 1321147661. The next prime is 1321147717. The reversal of 1321147696 is 6967411231.

It is a super-5 number, since 5×1321147696⁵ (a number of 47 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 339270 + ... + 343141.

Almost surely, 2^1321147696 is an apocalyptic number.

1321147696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1321147696 is an abundant number, since it is smaller than the sum of its proper divisors (1492436980).

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

1321147696 is a wasteful number, since it uses less digits than its factorization.

1321147696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682441 (or 682424 counting only the distinct ones).

The product of its digits is 54432, while the sum is 40.

The square root of 1321147696 is about 36347.5954637993. The cubic root of 1321147696 is about 1097.2791421543.

The spelling of 1321147696 in words is "one billion, three hundred twenty-one million, one hundred forty-seven thousand, six hundred ninety-six".