123210320211 has 32 divisors (see below), whose sum is σ = 200581344000. Its totient is φ = 74127839040.

The previous prime is 123210320209. The next prime is 123210320263. The reversal of 123210320211 is 112023012321.

123210320211 is a `hidden beast` number, since 1 + 2 + 321 + 0 + 320 + 21 + 1 = 666.

It is not a de Polignac number, because 123210320211 - 2¹ = 123210320209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123210320111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1473361 + ... + 1554738.

It is an arithmetic number, because the mean of its divisors is an integer number (6268167000).

Almost surely, 2^123210320211 is an apocalyptic number.

123210320211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

123210320211 is a deficient number, since it is larger than the sum of its proper divisors (77371023789).

123210320211 is a wasteful number, since it uses less digits than its factorization.

123210320211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3028256 (or 3028250 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 123210320211 its reverse (112023012321), we get a palindrome (235233332532).

The spelling of 123210320211 in words is "one hundred twenty-three billion, two hundred ten million, three hundred twenty thousand, two hundred eleven".