1301212321 has 8 divisors (see below), whose sum is σ = 1413881600. Its totient is φ = 1192961520.

The previous prime is 1301212309. The next prime is 1301212349. The reversal of 1301212321 is 1232121031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1301212321 - 2⁹ = 1301211809 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1301212295 and 1301212304.

It is not an unprimeable number, because it can be changed into a prime (1301212021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1104006 + ... + 1105183.

It is an arithmetic number, because the mean of its divisors is an integer number (176735200).

Almost surely, 2^1301212321 is an apocalyptic number.

It is an amenable number.

1301212321 is a deficient number, since it is larger than the sum of its proper divisors (112669279).

1301212321 is a wasteful number, since it uses less digits than its factorization.

1301212321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2209239.

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

The square root of 1301212321 is about 36072.3207043850. The cubic root of 1301212321 is about 1091.7320388126.

Adding to 1301212321 its reverse (1232121031), we get a palindrome (2533333352).

The spelling of 1301212321 in words is "one billion, three hundred one million, two hundred twelve thousand, three hundred twenty-one".