1321241401 has 4 divisors (see below), whose sum is σ = 1336086900. Its totient is φ = 1306395904.

The previous prime is 1321241333. The next prime is 1321241419. The reversal of 1321241401 is 1041421231.

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 786522025 + 534719376 = 28045^2 + 23124^2 .

It is a cyclic number.

It is not a de Polignac number, because 1321241401 - 2⁹ = 1321240889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1321241431) 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, 7422616 + ... + 7422793.

It is an arithmetic number, because the mean of its divisors is an integer number (334021725).

Almost surely, 2^1321241401 is an apocalyptic number.

It is an amenable number.

1321241401 is a deficient number, since it is larger than the sum of its proper divisors (14845499).

1321241401 is an equidigital number, since it uses as much as digits as its factorization.

1321241401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14845498.

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

The square root of 1321241401 is about 36348.8844533089. The cubic root of 1321241401 is about 1097.3050837685.

Adding to 1321241401 its reverse (1041421231), we get a palindrome (2362662632).

The spelling of 1321241401 in words is "one billion, three hundred twenty-one million, two hundred forty-one thousand, four hundred one".