213125300405 has 16 divisors (see below), whose sum is σ = 262539598464. Its totient is φ = 165999583680.

The previous prime is 213125300371. The next prime is 213125300441. The reversal of 213125300405 is 504003521312.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-213125300405 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1526834 + ... + 1660563.

It is an arithmetic number, because the mean of its divisors is an integer number (16408724904).

Almost surely, 2^213125300405 is an apocalyptic number.

It is an amenable number.

213125300405 is a deficient number, since it is larger than the sum of its proper divisors (49414298059).

213125300405 is a wasteful number, since it uses less digits than its factorization.

213125300405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3187756.

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 213125300405 its reverse (504003521312), we get a palindrome (717128821717).

The spelling of 213125300405 in words is "two hundred thirteen billion, one hundred twenty-five million, three hundred thousand, four hundred five".