1321671332 has 18 divisors (see below), whose sum is σ = 2331308658. Its totient is φ = 655589632.

The previous prime is 1321671313. The next prime is 1321671419. The reversal of 1321671332 is 2331761231.

It can be written as a sum of positive squares in 3 ways, for example, as 784996 + 1320886336 = 886^2 + 36344^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1321671295 and 1321671304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 850268 + ... + 851820.

Almost surely, 2^1321671332 is an apocalyptic number.

It is an amenable number.

1321671332 is a deficient number, since it is larger than the sum of its proper divisors (1009637326).

1321671332 is an equidigital number, since it uses as much as digits as its factorization.

1321671332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3247 (or 1692 counting only the distinct ones).

The product of its digits is 4536, while the sum is 29.

The square root of 1321671332 is about 36354.7979226952. The cubic root of 1321671332 is about 1097.4240916223.

It can be divided in two parts, 13216 and 71332, that added together give a palindrome (84548).

The spelling of 1321671332 in words is "one billion, three hundred twenty-one million, six hundred seventy-one thousand, three hundred thirty-two".