1214404001321 has 10 divisors (see below), whose sum is σ = 1416720372522. Its totient is φ = 1040917713360.

The previous prime is 1214404001297. The next prime is 1214404001357. The reversal of 1214404001321 is 1231004044121.

It can be written as a sum of positive squares in only one way, i.e., 1198173241321 + 16230760000 = 1094611^2 + 127400^2 .

It is not a de Polignac number, because 1214404001321 - 2²² = 1214399807017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1214404001221) 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 in 9 ways as a sum of consecutive naturals, for example, 252893060 + ... + 252897861.

Almost surely, 2^{1214404001321} is an apocalyptic number.

It is an amenable number.

1214404001321 is a deficient number, since it is larger than the sum of its proper divisors (202316371201).

1214404001321 is an frugal number, since it uses more digits than its factorization.

1214404001321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505790949 (or 505790928 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 1214404001321 its reverse (1231004044121), we get a palindrome (2445408045442).

The spelling of 1214404001321 in words is "one trillion, two hundred fourteen billion, four hundred four million, one thousand, three hundred twenty-one".