1321412401 has 4 divisors (see below), whose sum is σ = 1328713204. Its totient is φ = 1314111600.

The previous prime is 1321412359. The next prime is 1321412447. The reversal of 1321412401 is 1042141231.

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

It can be written as a sum of positive squares in 2 ways, for example, as 112042225 + 1209370176 = 10585^2 + 34776^2 .

It is a cyclic number.

It is not a de Polignac number, because 1321412401 - 2¹³ = 1321404209 is a prime.

It is a super-2 number, since 2×1321412401² = 3492261467033169602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1321412461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3650130 + ... + 3650491.

It is an arithmetic number, because the mean of its divisors is an integer number (332178301).

Almost surely, 2^1321412401 is an apocalyptic number.

It is an amenable number.

1321412401 is a deficient number, since it is larger than the sum of its proper divisors (7300803).

1321412401 is an equidigital number, since it uses as much as digits as its factorization.

1321412401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7300802.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1321412401 is about 36351.2365814425. The cubic root of 1321412401 is about 1097.3524208346.

Adding to 1321412401 its reverse (1042141231), we get a palindrome (2363553632).

The spelling of 1321412401 in words is "one billion, three hundred twenty-one million, four hundred twelve thousand, four hundred one".