1230111111023 has 16 divisors (see below), whose sum is σ = 1306886353344. Its totient is φ = 1153827816960.

The previous prime is 1230111110999. The next prime is 1230111111037. The reversal of 1230111111023 is 3201111110321.

It is a cyclic number.

It is not a de Polignac number, because 1230111111023 - 2¹⁰ = 1230111109999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1230111110992 and 1230111111010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230111119023) 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, 36553361 + ... + 36586997.

It is an arithmetic number, because the mean of its divisors is an integer number (81680397084).

Almost surely, 2^{1230111111023} is an apocalyptic number.

1230111111023 is a deficient number, since it is larger than the sum of its proper divisors (76775242321).

1230111111023 is a wasteful number, since it uses less digits than its factorization.

1230111111023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40882.

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

Adding to 1230111111023 its reverse (3201111110321), we get a palindrome (4431222221344).

The spelling of 1230111111023 in words is "one trillion, two hundred thirty billion, one hundred eleven million, one hundred eleven thousand, twenty-three".