123101112311 has 8 divisors (see below), whose sum is σ = 124828689024. Its totient is φ = 121374650880.

The previous prime is 123101112287. The next prime is 123101112349. The reversal of 123101112311 is 113211101321.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123101112311 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123101112311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123101112611) 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, 55271 + ... + 499256.

It is an arithmetic number, because the mean of its divisors is an integer number (15603586128).

Almost surely, 2^123101112311 is an apocalyptic number.

123101112311 is a deficient number, since it is larger than the sum of its proper divisors (1727576713).

123101112311 is an equidigital number, since it uses as much as digits as its factorization.

123101112311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557641.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 123101112311 its reverse (113211101321), we get a palindrome (236312213632).

The spelling of 123101112311 in words is "one hundred twenty-three billion, one hundred one million, one hundred twelve thousand, three hundred eleven".