1001020120213 has 2 divisors, whose sum is σ = 1001020120214. Its totient is φ = 1001020120212.

The previous prime is 1001020120207. The next prime is 1001020120267. The reversal of 1001020120213 is 3120210201001.

1001020120213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 730030118724 + 270990001489 = 854418^2 + 520567^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1001020120213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1001020120193 and 1001020120202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1001020120273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500510060106 + 500510060107.

It is an arithmetic number, because the mean of its divisors is an integer number (500510060107).

Almost surely, 2^{1001020120213} is an apocalyptic number.

It is an amenable number.

1001020120213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001020120213 is an equidigital number, since it uses as much as digits as its factorization.

1001020120213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 1001020120213 its reverse (3120210201001), we get a palindrome (4121230321214).

The spelling of 1001020120213 in words is "one trillion, one billion, twenty million, one hundred twenty thousand, two hundred thirteen".