1000213230209 has 2 divisors, whose sum is σ = 1000213230210. Its totient is φ = 1000213230208.

The previous prime is 1000213230113. The next prime is 1000213230221. The reversal of 1000213230209 is 9020323120001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 975606601984 + 24606628225 = 987728^2 + 156865^2 .

It is a cyclic number.

It is not a de Polignac number, because 1000213230209 - 2²⁴ = 1000196452993 is a prime.

It is not a weakly prime, because it can be changed into another prime (1000213230299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500106615104 + 500106615105.

It is an arithmetic number, because the mean of its divisors is an integer number (500106615105).

Almost surely, 2^{1000213230209} is an apocalyptic number.

It is an amenable number.

1000213230209 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000213230209 is an equidigital number, since it uses as much as digits as its factorization.

1000213230209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

The spelling of 1000213230209 in words is "one trillion, two hundred thirteen million, two hundred thirty thousand, two hundred nine".