123013312011111 has 8 divisors (see below), whose sum is σ = 165309227689984. Its totient is φ = 81363135503160.

The previous prime is 123013312011103. The next prime is 123013312011137. The reversal of 123013312011111 is 111110213310321.

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

It is not a de Polignac number, because 123013312011111 - 2³ = 123013312011103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123013312011101) 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, 161434792285 + ... + 161434793046.

It is an arithmetic number, because the mean of its divisors is an integer number (20663653461248).

Almost surely, 2^{123013312011111} is an apocalyptic number.

123013312011111 is a deficient number, since it is larger than the sum of its proper divisors (42295915678873).

123013312011111 is a wasteful number, since it uses less digits than its factorization.

123013312011111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322869585461.

The product of its (nonzero) digits is 108, while the sum is 21.

Adding to 123013312011111 its reverse (111110213310321), we get a palindrome (234123525321432).

The spelling of 123013312011111 in words is "one hundred twenty-three trillion, thirteen billion, three hundred twelve million, eleven thousand, one hundred eleven".