123212133201111 has 8 divisors (see below), whose sum is σ = 164282928290544. Its totient is φ = 82141380122880.

The previous prime is 123212133200999. The next prime is 123212133201121. The reversal of 123212133201111 is 111102331212321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-123212133201111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123212133201121) 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, 2866300 + ... + 15957441.

It is an arithmetic number, because the mean of its divisors is an integer number (20535366036318).

Almost surely, 2^{123212133201111} is an apocalyptic number.

123212133201111 is a deficient number, since it is larger than the sum of its proper divisors (41070795089433).

123212133201111 is a wasteful number, since it uses less digits than its factorization.

123212133201111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21005601.

The product of its (nonzero) digits is 432, while the sum is 24.

Adding to 123212133201111 its reverse (111102331212321), we get a palindrome (234314464413432).

The spelling of 123212133201111 in words is "one hundred twenty-three trillion, two hundred twelve billion, one hundred thirty-three million, two hundred one thousand, one hundred eleven".