1321055132 has 24 divisors (see below), whose sum is σ = 2372966400. Its totient is φ = 643206960.

The previous prime is 1321055081. The next prime is 1321055167. The reversal of 1321055132 is 2315501231.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1321055098 and 1321055107.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19757 + ... + 55067.

It is an arithmetic number, because the mean of its divisors is an integer number (98873600).

Almost surely, 2^1321055132 is an apocalyptic number.

It is an amenable number.

1321055132 is a deficient number, since it is larger than the sum of its proper divisors (1051911268).

1321055132 is a wasteful number, since it uses less digits than its factorization.

1321055132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35561 (or 35559 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 1321055132 is about 36346.3221248038. The cubic root of 1321055132 is about 1097.2535152142.

Adding to 1321055132 its reverse (2315501231), we get a palindrome (3636556363).

The spelling of 1321055132 in words is "one billion, three hundred twenty-one million, fifty-five thousand, one hundred thirty-two".