1301012021013 has 4 divisors (see below), whose sum is σ = 1734682694688. Its totient is φ = 867341347340.

The previous prime is 1301012020993. The next prime is 1301012021027. The reversal of 1301012021013 is 3101202101031.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 1301012021013 - 2¹⁸ = 1301011758869 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1301012020983 and 1301012021001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301012021063) 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, 216835336833 + ... + 216835336838.

It is an arithmetic number, because the mean of its divisors is an integer number (433670673672).

Almost surely, 2^{1301012021013} is an apocalyptic number.

It is an amenable number.

1301012021013 is a deficient number, since it is larger than the sum of its proper divisors (433670673675).

1301012021013 is an equidigital number, since it uses as much as digits as its factorization.

1301012021013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433670673674.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 1301012021013 its reverse (3101202101031), we get a palindrome (4402214122044).

The spelling of 1301012021013 in words is "one trillion, three hundred one billion, twelve million, twenty-one thousand, thirteen".