213510521350 has 96 divisors (see below), whose sum is σ = 464640261120. Its totient is φ = 71472783360.

The previous prime is 213510521339. The next prime is 213510521351. The reversal of 213510521350 is 53125015312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213510521351) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6877062 + ... + 6908038.

It is an arithmetic number, because the mean of its divisors is an integer number (4840002720).

Almost surely, 2^213510521350 is an apocalyptic number.

213510521350 is an abundant number, since it is smaller than the sum of its proper divisors (251129739770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213510521350 is a wasteful number, since it uses less digits than its factorization.

213510521350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31462 (or 31457 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 28.

Adding to 213510521350 its reverse (53125015312), we get a palindrome (266635536662).

The spelling of 213510521350 in words is "two hundred thirteen billion, five hundred ten million, five hundred twenty-one thousand, three hundred fifty".