1301130421 has 4 divisors (see below), whose sum is σ = 1331389312. Its totient is φ = 1270871532.

The previous prime is 1301130409. The next prime is 1301130437. The reversal of 1301130421 is 1240311031.

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: 1240311031 = 89 ⋅13936079.

It is a cyclic number.

It is not a de Polignac number, because 1301130421 - 2⁹ = 1301129909 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1301130395 and 1301130404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301130491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15129381 + ... + 15129466.

It is an arithmetic number, because the mean of its divisors is an integer number (332847328).

Almost surely, 2^1301130421 is an apocalyptic number.

It is an amenable number.

1301130421 is a deficient number, since it is larger than the sum of its proper divisors (30258891).

1301130421 is an equidigital number, since it uses as much as digits as its factorization.

1301130421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30258890.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1301130421 is about 36071.1854670733. The cubic root of 1301130421 is about 1091.7091333194.

Adding to 1301130421 its reverse (1240311031), we get a palindrome (2541441452).

The spelling of 1301130421 in words is "one billion, three hundred one million, one hundred thirty thousand, four hundred twenty-one".