213200510111553 has 4 divisors (see below), whose sum is σ = 284267346815408. Its totient is φ = 142133673407700.

The previous prime is 213200510111539. The next prime is 213200510111903. The reversal of 213200510111553 is 355111015002312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 213200510111553 - 2⁶ = 213200510111489 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 213200510111553.

It is not an unprimeable number, because it can be changed into a prime (213200510111513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35533418351923 + ... + 35533418351928.

It is an arithmetic number, because the mean of its divisors is an integer number (71066836703852).

Almost surely, 2^{213200510111553} is an apocalyptic number.

It is an amenable number.

213200510111553 is a deficient number, since it is larger than the sum of its proper divisors (71066836703855).

213200510111553 is an equidigital number, since it uses as much as digits as its factorization.

213200510111553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71066836703854.

The product of its (nonzero) digits is 4500, while the sum is 30.

Adding to 213200510111553 its reverse (355111015002312), we get a palindrome (568311525113865).

The spelling of 213200510111553 in words is "two hundred thirteen trillion, two hundred billion, five hundred ten million, one hundred eleven thousand, five hundred fifty-three".