213530212621353 has 32 divisors (see below), whose sum is σ = 291850187346432. Its totient is φ = 138793743446400.

The previous prime is 213530212621343. The next prime is 213530212621367. The reversal of 213530212621353 is 353126212035312.

It is not a de Polignac number, because 213530212621353 - 2⁶ = 213530212621289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213530212621343) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2538026098 + ... + 2538110228.

It is an arithmetic number, because the mean of its divisors is an integer number (9120318354576).

Almost surely, 2^{213530212621353} is an apocalyptic number.

It is an amenable number.

213530212621353 is a deficient number, since it is larger than the sum of its proper divisors (78319974725079).

213530212621353 is a wasteful number, since it uses less digits than its factorization.

213530212621353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119205.

The product of its (nonzero) digits is 194400, while the sum is 39.

Adding to 213530212621353 its reverse (353126212035312), we get a palindrome (566656424656665).

The spelling of 213530212621353 in words is "two hundred thirteen trillion, five hundred thirty billion, two hundred twelve million, six hundred twenty-one thousand, three hundred fifty-three".