1321132342 has 4 divisors (see below), whose sum is σ = 1981698516. Its totient is φ = 660566170.

The previous prime is 1321132333. The next prime is 1321132343. The reversal of 1321132342 is 2432311231.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321132343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330283084 + ... + 330283087.

It is an arithmetic number, because the mean of its divisors is an integer number (495424629).

Almost surely, 2^1321132342 is an apocalyptic number.

1321132342 is a deficient number, since it is larger than the sum of its proper divisors (660566174).

1321132342 is an equidigital number, since it uses as much as digits as its factorization.

1321132342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660566173.

The product of its digits is 864, while the sum is 22.

The square root of 1321132342 is about 36347.3842525153. The cubic root of 1321132342 is about 1097.2748913833.

Adding to 1321132342 its reverse (2432311231), we get a palindrome (3753443573).

The spelling of 1321132342 in words is "one billion, three hundred twenty-one million, one hundred thirty-two thousand, three hundred forty-two".