1001020001213 has 2 divisors, whose sum is σ = 1001020001214. Its totient is φ = 1001020001212.

The previous prime is 1001020001209. The next prime is 1001020001239. The reversal of 1001020001213 is 3121000201001.

1001020001213 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., 620876233849 + 380143767364 = 787957^2 + 616558^2 .

It is a cyclic number.

It is not a de Polignac number, because 1001020001213 - 2² = 1001020001209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1001020001194 and 1001020001203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1001020001243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500510000606 + 500510000607.

It is an arithmetic number, because the mean of its divisors is an integer number (500510000607).

Almost surely, 2^{1001020001213} is an apocalyptic number.

It is an amenable number.

1001020001213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001020001213 is an equidigital number, since it uses as much as digits as its factorization.

1001020001213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 1001020001213 its reverse (3121000201001), we get a palindrome (4122020202214).

The spelling of 1001020001213 in words is "one trillion, one billion, twenty million, one thousand, two hundred thirteen".