1323121214 has 4 divisors (see below), whose sum is σ = 1984681824. Its totient is φ = 661560606.

The previous prime is 1323121213. The next prime is 1323121229. The reversal of 1323121214 is 4121213231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4121213231 = 991 ⋅4158641.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323121213) by changing a digit.

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 as a sum of consecutive naturals, namely, 330780302 + ... + 330780305.

It is an arithmetic number, because the mean of its divisors is an integer number (496170456).

Almost surely, 2^1323121214 is an apocalyptic number.

1323121214 is a deficient number, since it is larger than the sum of its proper divisors (661560610).

1323121214 is an equidigital number, since it uses as much as digits as its factorization.

1323121214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661560609.

The product of its digits is 288, while the sum is 20.

The square root of 1323121214 is about 36374.7331811520. The cubic root of 1323121214 is about 1097.8252387466.

Adding to 1323121214 its reverse (4121213231), we get a palindrome (5444334445).

The spelling of 1323121214 in words is "one billion, three hundred twenty-three million, one hundred twenty-one thousand, two hundred fourteen".