123213012211 has 8 divisors (see below), whose sum is σ = 128699232480. Its totient is φ = 117809291712.

The previous prime is 123213012193. The next prime is 123213012289. The reversal of 123213012211 is 112210312321.

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 123213012211 - 2²³ = 123204623603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123213012911) 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, 20621890 + ... + 20627863.

It is an arithmetic number, because the mean of its divisors is an integer number (16087404060).

Almost surely, 2^123213012211 is an apocalyptic number.

123213012211 is a deficient number, since it is larger than the sum of its proper divisors (5486220269).

123213012211 is a wasteful number, since it uses less digits than its factorization.

123213012211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41249885.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 123213012211 its reverse (112210312321), we get a palindrome (235423324532).

The spelling of 123213012211 in words is "one hundred twenty-three billion, two hundred thirteen million, twelve thousand, two hundred eleven".