213022121303 has 16 divisors (see below), whose sum is σ = 231182155776. Its totient is φ = 195758972640.

The previous prime is 213022121293. The next prime is 213022121317. The reversal of 213022121303 is 303121220312.

It is not a de Polignac number, because 213022121303 - 2¹² = 213022117207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213022121353) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1705175 + ... + 1825832.

It is an arithmetic number, because the mean of its divisors is an integer number (14448884736).

Almost surely, 2^213022121303 is an apocalyptic number.

213022121303 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

213022121303 is a deficient number, since it is larger than the sum of its proper divisors (18160034473).

213022121303 is a wasteful number, since it uses less digits than its factorization.

213022121303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3531134.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 213022121303 its reverse (303121220312), we get a palindrome (516143341615).

Subtracting 213022121303 from its reverse (303121220312), we obtain a palindrome (90099099009).

The spelling of 213022121303 in words is "two hundred thirteen billion, twenty-two million, one hundred twenty-one thousand, three hundred three".