123212223231213 has 32 divisors (see below), whose sum is σ = 166144018320000. Its totient is φ = 81216040292352.

The previous prime is 123212223231197. The next prime is 123212223231221. The reversal of 123212223231213 is 312132322212321.

It is a happy number.

It is not a de Polignac number, because 123212223231213 - 2⁴ = 123212223231197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123212223231233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 292448853 + ... + 292869861.

It is an arithmetic number, because the mean of its divisors is an integer number (5192000572500).

Almost surely, 2^{123212223231213} is an apocalyptic number.

It is an amenable number.

123212223231213 is a deficient number, since it is larger than the sum of its proper divisors (42931795088787).

123212223231213 is a wasteful number, since it uses less digits than its factorization.

123212223231213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424029.

The product of its digits is 10368, while the sum is 30.

Adding to 123212223231213 its reverse (312132322212321), we get a palindrome (435344545443534).

The spelling of 123212223231213 in words is "one hundred twenty-three trillion, two hundred twelve billion, two hundred twenty-three million, two hundred thirty-one thousand, two hundred thirteen".