123045143243211 has 72 divisors (see below), whose sum is σ = 207394834622976. Its totient is φ = 68862291526080.

The previous prime is 123045143243177. The next prime is 123045143243213. The reversal of 123045143243211 is 112342341540321.

123045143243211 is a `hidden beast` number, since 1 + 2 + 3 + 0 + 4 + 5 + 1 + 4 + 324 + 321 + 1 = 666.

It is not a de Polignac number, because 123045143243211 - 2³⁴ = 123027963374027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123045143243213) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 99014926 + ... + 100249916.

It is an arithmetic number, because the mean of its divisors is an integer number (2880483814208).

Almost surely, 2^{123045143243211} is an apocalyptic number.

123045143243211 is a deficient number, since it is larger than the sum of its proper divisors (84349691379765).

123045143243211 is a wasteful number, since it uses less digits than its factorization.

123045143243211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1235673 (or 1235617 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

Adding to 123045143243211 its reverse (112342341540321), we get a palindrome (235387484783532).

The spelling of 123045143243211 in words is "one hundred twenty-three trillion, forty-five billion, one hundred forty-three million, two hundred forty-three thousand, two hundred eleven".