213345315525 has 12 divisors (see below), whose sum is σ = 352730921792. Its totient is φ = 113784168240.

The previous prime is 213345315517. The next prime is 213345315569. The reversal of 213345315525 is 525513543312.

It is not a de Polignac number, because 213345315525 - 2³ = 213345315517 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 11 ways as a sum of consecutive naturals, for example, 1422302029 + ... + 1422302178.

Almost surely, 2^213345315525 is an apocalyptic number.

213345315525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

213345315525 is a deficient number, since it is larger than the sum of its proper divisors (139385606267).

213345315525 is a wasteful number, since it uses less digits than its factorization.

213345315525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2844604220 (or 2844604215 counting only the distinct ones).

The product of its digits is 270000, while the sum is 39.

Adding to 213345315525 its reverse (525513543312), we get a palindrome (738858858837).

The spelling of 213345315525 in words is "two hundred thirteen billion, three hundred forty-five million, three hundred fifteen thousand, five hundred twenty-five".