1000209010901 has 4 divisors (see below), whose sum is σ = 1000230299712. Its totient is φ = 1000187722092.

The previous prime is 1000209010811. The next prime is 1000209010903. The reversal of 1000209010901 is 1090109020001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1000209010901 - 2²⁶ = 1000141902037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000209010903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10573775 + ... + 10667948.

It is an arithmetic number, because the mean of its divisors is an integer number (250057574928).

Almost surely, 2^{1000209010901} is an apocalyptic number.

It is an amenable number.

1000209010901 is a deficient number, since it is larger than the sum of its proper divisors (21288811).

1000209010901 is an equidigital number, since it uses as much as digits as its factorization.

1000209010901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21288810.

The product of its (nonzero) digits is 162, while the sum is 23.

The spelling of 1000209010901 in words is "one trillion, two hundred nine million, ten thousand, nine hundred one".