213123031103 has 8 divisors (see below), whose sum is σ = 226436670720. Its totient is φ = 200019055320.

The previous prime is 213123031057. The next prime is 213123031127. The reversal of 213123031103 is 301130321312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 213123031103 - 2¹⁴ = 213123014719 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 (213123031133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52413863 + ... + 52417928.

It is an arithmetic number, because the mean of its divisors is an integer number (28304583840).

Almost surely, 2^213123031103 is an apocalyptic number.

213123031103 is a deficient number, since it is larger than the sum of its proper divisors (13313639617).

213123031103 is a wasteful number, since it uses less digits than its factorization.

213123031103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104831917.

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

Adding to 213123031103 its reverse (301130321312), we get a palindrome (514253352415).

The spelling of 213123031103 in words is "two hundred thirteen billion, one hundred twenty-three million, thirty-one thousand, one hundred three".