1301323421 has 4 divisors (see below), whose sum is σ = 1310685600. Its totient is φ = 1291961244.

The previous prime is 1301323391. The next prime is 1301323427. The reversal of 1301323421 is 1243231031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1243231031 = 7 ⋅177604433.

It is a cyclic number.

It is not a de Polignac number, because 1301323421 - 2¹⁰ = 1301322397 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1301323393 and 1301323402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301323427) 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, 4680881 + ... + 4681158.

It is an arithmetic number, because the mean of its divisors is an integer number (327671400).

Almost surely, 2^1301323421 is an apocalyptic number.

It is an amenable number.

1301323421 is a deficient number, since it is larger than the sum of its proper divisors (9362179).

1301323421 is an equidigital number, since it uses as much as digits as its factorization.

1301323421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9362178.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1301323421 is about 36073.8606334282. The cubic root of 1301323421 is about 1091.7631093191.

Adding to 1301323421 its reverse (1243231031), we get a palindrome (2544554452).

The spelling of 1301323421 in words is "one billion, three hundred one million, three hundred twenty-three thousand, four hundred twenty-one".