213110331023 has 4 divisors (see below), whose sum is σ = 213330714960. Its totient is φ = 212889947088.

The previous prime is 213110331013. The next prime is 213110331113. The reversal of 213110331023 is 320133011312.

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 213110331023 - 2⁸ = 213110330767 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213110330986 and 213110331004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213110331013) 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, 110190518 + ... + 110192451.

It is an arithmetic number, because the mean of its divisors is an integer number (53332678740).

Almost surely, 2^213110331023 is an apocalyptic number.

213110331023 is a deficient number, since it is larger than the sum of its proper divisors (220383937).

213110331023 is an equidigital number, since it uses as much as digits as its factorization.

213110331023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220383936.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 213110331023 its reverse (320133011312), we get a palindrome (533243342335).

The spelling of 213110331023 in words is "two hundred thirteen billion, one hundred ten million, three hundred thirty-one thousand, twenty-three".