213353501011444 has 12 divisors (see below), whose sum is σ = 373369030072164. Its totient is φ = 106676635276544.

The previous prime is 213353501011379. The next prime is 213353501011463. The reversal of 213353501011444 is 444110105353312.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 185606291587600 + 27747209423844 = 13623740^2 + 5267562^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24572107 + ... + 32101330.

It is an arithmetic number, because the mean of its divisors is an integer number (31114085839347).

Almost surely, 2^{213353501011444} is an apocalyptic number.

It is an amenable number.

213353501011444 is a deficient number, since it is larger than the sum of its proper divisors (160015529060720).

213353501011444 is a wasteful number, since it uses less digits than its factorization.

213353501011444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57614594 (or 57614592 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

Adding to 213353501011444 its reverse (444110105353312), we get a palindrome (657463606364756).

The spelling of 213353501011444 in words is "two hundred thirteen trillion, three hundred fifty-three billion, five hundred one million, eleven thousand, four hundred forty-four".