213021233023 has 4 divisors (see below), whose sum is σ = 213465954240. Its totient is φ = 212576511808.

The previous prime is 213021233003. The next prime is 213021233053. The reversal of 213021233023 is 320332120312.

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 213021233023 - 2¹³ = 213021224831 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213021232985 and 213021233003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213021233003) 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, 222359890 + ... + 222360847.

It is an arithmetic number, because the mean of its divisors is an integer number (53366488560).

Almost surely, 2^213021233023 is an apocalyptic number.

213021233023 is a deficient number, since it is larger than the sum of its proper divisors (444721217).

213021233023 is an equidigital number, since it uses as much as digits as its factorization.

213021233023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444721216.

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

Adding to 213021233023 its reverse (320332120312), we get a palindrome (533353353335).

The spelling of 213021233023 in words is "two hundred thirteen billion, twenty-one million, two hundred thirty-three thousand, twenty-three".