213230132120123 has 4 divisors (see below), whose sum is σ = 213230254909800. Its totient is φ = 213230009330448.

The previous prime is 213230132120081. The next prime is 213230132120147. The reversal of 213230132120123 is 321021231032312.

213230132120123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 213230132120123 - 2⁶ = 213230132120059 is a prime.

It is a super-2 number, since 2×213230132120123² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213230132120092 and 213230132120101.

It is not an unprimeable number, because it can be changed into a prime (213230132120623) 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, 58752098 + ... + 62275751.

It is an arithmetic number, because the mean of its divisors is an integer number (53307563727450).

Almost surely, 2^{213230132120123} is an apocalyptic number.

213230132120123 is a deficient number, since it is larger than the sum of its proper divisors (122789677).

213230132120123 is a wasteful number, since it uses less digits than its factorization.

213230132120123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122789676.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 213230132120123 its reverse (321021231032312), we get a palindrome (534251363152435).

The spelling of 213230132120123 in words is "two hundred thirteen trillion, two hundred thirty billion, one hundred thirty-two million, one hundred twenty thousand, one hundred twenty-three".