213203023401 has 4 divisors (see below), whose sum is σ = 284270697872. Its totient is φ = 142135348932.

The previous prime is 213203023357. The next prime is 213203023417. The reversal of 213203023401 is 104320302312.

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 not a de Polignac number, because 213203023401 - 2⁷ = 213203023273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213203023441) 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, 35533837231 + ... + 35533837236.

It is an arithmetic number, because the mean of its divisors is an integer number (71067674468).

Almost surely, 2^213203023401 is an apocalyptic number.

It is an amenable number.

213203023401 is a deficient number, since it is larger than the sum of its proper divisors (71067674471).

213203023401 is an equidigital number, since it uses as much as digits as its factorization.

213203023401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71067674470.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 213203023401 its reverse (104320302312), we get a palindrome (317523325713).

The spelling of 213203023401 in words is "two hundred thirteen billion, two hundred three million, twenty-three thousand, four hundred one".