231010213211123 has 4 divisors (see below), whose sum is σ = 231158391668880. Its totient is φ = 230862034753368.

The previous prime is 231010213211021. The next prime is 231010213211153. The reversal of 231010213211123 is 321112312010132.

It is a happy number.

231010213211123 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 231010213211123 - 2¹⁰ = 231010213210099 is a prime.

It is a super-3 number, since 3×231010213211123³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231010213211153) 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, 74089226540 + ... + 74089229657.

It is an arithmetic number, because the mean of its divisors is an integer number (57789597917220).

Almost surely, 2^{231010213211123} is an apocalyptic number.

231010213211123 is a deficient number, since it is larger than the sum of its proper divisors (148178457757).

231010213211123 is a wasteful number, since it uses less digits than its factorization.

231010213211123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148178457756.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 231010213211123 its reverse (321112312010132), we get a palindrome (552122525221255).

The spelling of 231010213211123 in words is "two hundred thirty-one trillion, ten billion, two hundred thirteen million, two hundred eleven thousand, one hundred twenty-three".