213203001001 has 4 divisors (see below), whose sum is σ = 224424211600. Its totient is φ = 201981790404.

The previous prime is 213203000957. The next prime is 213203001023. The reversal of 213203001001 is 100100302312.

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 a de Polignac number, because none of the positive numbers 2^k-213203001001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213203001041) 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, 5610605271 + ... + 5610605308.

It is an arithmetic number, because the mean of its divisors is an integer number (56106052900).

Almost surely, 2^213203001001 is an apocalyptic number.

It is an amenable number.

213203001001 is a deficient number, since it is larger than the sum of its proper divisors (11221210599).

213203001001 is a wasteful number, since it uses less digits than its factorization.

213203001001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11221210598.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 213203001001 its reverse (100100302312), we get a palindrome (313303303313).

The spelling of 213203001001 in words is "two hundred thirteen billion, two hundred three million, one thousand, one".