123233031213 has 4 divisors (see below), whose sum is σ = 164310708288. Its totient is φ = 82155354140.

The previous prime is 123233031211. The next prime is 123233031223. The reversal of 123233031213 is 312130332321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 123233031213 - 2¹ = 123233031211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123233031211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20538838533 + ... + 20538838538.

It is an arithmetic number, because the mean of its divisors is an integer number (41077677072).

Almost surely, 2^123233031213 is an apocalyptic number.

It is an amenable number.

123233031213 is a deficient number, since it is larger than the sum of its proper divisors (41077677075).

123233031213 is an equidigital number, since it uses as much as digits as its factorization.

123233031213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41077677074.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 123233031213 its reverse (312130332321), we get a palindrome (435363363534).

The spelling of 123233031213 in words is "one hundred twenty-three billion, two hundred thirty-three million, thirty-one thousand, two hundred thirteen".