123112013311 has 16 divisors (see below), whose sum is σ = 143988342784. Its totient is φ = 103058482464.

The previous prime is 123112013309. The next prime is 123112013351. The reversal of 123112013311 is 113310211321.

It is not a de Polignac number, because 123112013311 - 2¹ = 123112013309 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 (123112013351) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3344770 + ... + 3381376.

It is an arithmetic number, because the mean of its divisors is an integer number (8999271424).

Almost surely, 2^123112013311 is an apocalyptic number.

123112013311 is a deficient number, since it is larger than the sum of its proper divisors (20876329473).

123112013311 is a wasteful number, since it uses less digits than its factorization.

123112013311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47830.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 123112013311 its reverse (113310211321), we get a palindrome (236422224632).

The spelling of 123112013311 in words is "one hundred twenty-three billion, one hundred twelve million, thirteen thousand, three hundred eleven".