2031023111123 has 8 divisors (see below), whose sum is σ = 2137933156800. Its totient is φ = 1924114474728.

The previous prime is 2031023111083. The next prime is 2031023111153. The reversal of 2031023111123 is 3211113201302.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2031023111123 - 2⁸ = 2031023110867 is a prime.

It is a super-2 number, since 2×2031023111123² (a number of 25 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 = 2031023111095 and 2031023111104.

It is not an unprimeable number, because it can be changed into a prime (2031023111153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3958340 + ... + 4441902.

It is an arithmetic number, because the mean of its divisors is an integer number (267241644600).

Almost surely, 2^{2031023111123} is an apocalyptic number.

2031023111123 is a deficient number, since it is larger than the sum of its proper divisors (106910045677).

2031023111123 is a wasteful number, since it uses less digits than its factorization.

2031023111123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704641.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 2031023111123 its reverse (3211113201302), we get a palindrome (5242136312425).

The spelling of 2031023111123 in words is "two trillion, thirty-one billion, twenty-three million, one hundred eleven thousand, one hundred twenty-three".