1324443200421 has 16 divisors (see below), whose sum is σ = 1927469966400. Its totient is φ = 802273211520.

The previous prime is 1324443200371. The next prime is 1324443200441. The reversal of 1324443200421 is 1240023444231.

It is not a de Polignac number, because 1324443200421 - 2¹⁰ = 1324443199397 is a prime.

It is a super-2 number, since 2×1324443200421² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1324443200441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10426846 + ... + 10553103.

It is an arithmetic number, because the mean of its divisors is an integer number (120466872900).

Almost surely, 2^{1324443200421} is an apocalyptic number.

1324443200421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1324443200421 is a deficient number, since it is larger than the sum of its proper divisors (603026765979).

1324443200421 is a wasteful number, since it uses less digits than its factorization.

1324443200421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20981876.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 1324443200421 its reverse (1240023444231), we get a palindrome (2564466644652).

The spelling of 1324443200421 in words is "one trillion, three hundred twenty-four billion, four hundred forty-three million, two hundred thousand, four hundred twenty-one".