123031320211 has 8 divisors (see below), whose sum is σ = 131533200864. Its totient is φ = 114669966720.

The previous prime is 123031320197. The next prime is 123031320221. The reversal of 123031320211 is 112023130321.

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

It is not a de Polignac number, because 123031320211 - 2¹⁵ = 123031287443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123031320221) 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, 35129980 + ... + 35133481.

It is an arithmetic number, because the mean of its divisors is an integer number (16441650108).

Almost surely, 2^123031320211 is an apocalyptic number.

123031320211 is a deficient number, since it is larger than the sum of its proper divisors (8501880653).

123031320211 is a wasteful number, since it uses less digits than its factorization.

123031320211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70263581.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 123031320211 its reverse (112023130321), we get a palindrome (235054450532).

The spelling of 123031320211 in words is "one hundred twenty-three billion, thirty-one million, three hundred twenty thousand, two hundred eleven".