213023122303 has 4 divisors (see below), whose sum is σ = 220368747240. Its totient is φ = 205677497368.

The previous prime is 213023122261. The next prime is 213023122307. The reversal of 213023122303 is 303221320312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 213023122303 - 2⁹ = 213023121791 is a prime.

It is a super-3 number, since 3×213023122303³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213023122307) 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, 3672812425 + ... + 3672812482.

It is an arithmetic number, because the mean of its divisors is an integer number (55092186810).

Almost surely, 2^213023122303 is an apocalyptic number.

213023122303 is a deficient number, since it is larger than the sum of its proper divisors (7345624937).

213023122303 is an equidigital number, since it uses as much as digits as its factorization.

213023122303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7345624936.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 213023122303 its reverse (303221320312), we get a palindrome (516244442615).

The spelling of 213023122303 in words is "two hundred thirteen billion, twenty-three million, one hundred twenty-two thousand, three hundred three".