111210101123 has 16 divisors (see below), whose sum is σ = 128023943040. Its totient is φ = 95540112000.

The previous prime is 111210101111. The next prime is 111210101137. The reversal of 111210101123 is 321101012111.

It is a cyclic number.

It is not a de Polignac number, because 111210101123 - 2¹² = 111210097027 is a prime.

It is a super-2 number, since 2×111210101123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111210101098 and 111210101107.

It is not an unprimeable number, because it can be changed into a prime (111210101143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 579665 + ... + 747282.

It is an arithmetic number, because the mean of its divisors is an integer number (8001496440).

Almost surely, 2^111210101123 is an apocalyptic number.

111210101123 is a deficient number, since it is larger than the sum of its proper divisors (16813841917).

111210101123 is a wasteful number, since it uses less digits than its factorization.

111210101123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1327378.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 111210101123 its reverse (321101012111), we get a palindrome (432311113234).

The spelling of 111210101123 in words is "one hundred eleven billion, two hundred ten million, one hundred one thousand, one hundred twenty-three".