213125300421 has 16 divisors (see below), whose sum is σ = 320000452608. Its totient is φ = 125000175600.

The previous prime is 213125300371. The next prime is 213125300441. The reversal of 213125300421 is 124003521312.

It is not a de Polignac number, because 213125300421 - 2⁶ = 213125300357 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213125300391 and 213125300400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213125300441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104165791 + ... + 104167836.

It is an arithmetic number, because the mean of its divisors is an integer number (20000028288).

Almost surely, 2^213125300421 is an apocalyptic number.

It is an amenable number.

213125300421 is a deficient number, since it is larger than the sum of its proper divisors (106875152187).

213125300421 is a wasteful number, since it uses less digits than its factorization.

213125300421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208333672.

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 213125300421 its reverse (124003521312), we get a palindrome (337128821733).

The spelling of 213125300421 in words is "two hundred thirteen billion, one hundred twenty-five million, three hundred thousand, four hundred twenty-one".