123105201243211 has 8 divisors (see below), whose sum is σ = 134302239719424. Its totient is φ = 111909105524520.

The previous prime is 123105201243203. The next prime is 123105201243223. The reversal of 123105201243211 is 112342102501321.

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 123105201243211 - 2³ = 123105201243203 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123105201243211.

It is not an unprimeable number, because it can be changed into a prime (123105201243251) 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, 235416331 + ... + 235938676.

It is an arithmetic number, because the mean of its divisors is an integer number (16787779964928).

Almost surely, 2^{123105201243211} is an apocalyptic number.

123105201243211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

123105201243211 is a deficient number, since it is larger than the sum of its proper divisors (11197038476213).

123105201243211 is a wasteful number, since it uses less digits than its factorization.

123105201243211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471378761.

The product of its (nonzero) digits is 2880, while the sum is 28.

Adding to 123105201243211 its reverse (112342102501321), we get a palindrome (235447303744532).

The spelling of 123105201243211 in words is "one hundred twenty-three trillion, one hundred five billion, two hundred one million, two hundred forty-three thousand, two hundred eleven".