120021304213 has 2 divisors, whose sum is σ = 120021304214. Its totient is φ = 120021304212.

The previous prime is 120021304211. The next prime is 120021304229. The reversal of 120021304213 is 312403120021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108344988964 + 11676315249 = 329158^2 + 108057^2 .

It is an emirp because it is prime and its reverse (312403120021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120021304213 - 2¹ = 120021304211 is a prime.

It is a super-2 number, since 2×120021304213² (a number of 23 digits) contains 22 as substring.

Together with 120021304211, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120021304211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60010652106 + 60010652107.

It is an arithmetic number, because the mean of its divisors is an integer number (60010652107).

Almost surely, 2^120021304213 is an apocalyptic number.

It is an amenable number.

120021304213 is a deficient number, since it is larger than the sum of its proper divisors (1).

120021304213 is an equidigital number, since it uses as much as digits as its factorization.

120021304213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 120021304213 its reverse (312403120021), we get a palindrome (432424424234).

The spelling of 120021304213 in words is "one hundred twenty billion, twenty-one million, three hundred four thousand, two hundred thirteen".