2123001043213 has 2 divisors, whose sum is σ = 2123001043214. Its totient is φ = 2123001043212.

The previous prime is 2123001043157. The next prime is 2123001043231. The reversal of 2123001043213 is 3123401003212.

Together with next prime (2123001043231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2049713349124 + 73287694089 = 1431682^2 + 270717^2 .

It is a cyclic number.

It is not a de Polignac number, because 2123001043213 - 2¹⁷ = 2123000912141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2123001046213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061500521606 + 1061500521607.

It is an arithmetic number, because the mean of its divisors is an integer number (1061500521607).

Almost surely, 2^{2123001043213} is an apocalyptic number.

It is an amenable number.

2123001043213 is a deficient number, since it is larger than the sum of its proper divisors (1).

2123001043213 is an equidigital number, since it uses as much as digits as its factorization.

2123001043213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 2123001043213 its reverse (3123401003212), we get a palindrome (5246402046425).

The spelling of 2123001043213 in words is "two trillion, one hundred twenty-three billion, one million, forty-three thousand, two hundred thirteen".