213013331023 has 4 divisors (see below), whose sum is σ = 213606683280. Its totient is φ = 212419978768.

The previous prime is 213013330969. The next prime is 213013331029. The reversal of 213013331023 is 320133310312.

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 213013331023 - 2¹⁷ = 213013199951 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213013330985 and 213013331003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213013331029) 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, 296675590 + ... + 296676307.

It is an arithmetic number, because the mean of its divisors is an integer number (53401670820).

Almost surely, 2^213013331023 is an apocalyptic number.

213013331023 is a deficient number, since it is larger than the sum of its proper divisors (593352257).

213013331023 is an equidigital number, since it uses as much as digits as its factorization.

213013331023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593352256.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 213013331023 its reverse (320133310312), we get a palindrome (533146641335).

The spelling of 213013331023 in words is "two hundred thirteen billion, thirteen million, three hundred thirty-one thousand, twenty-three".