112121212023 has 12 divisors (see below), whose sum is σ = 162036670120. Its totient is φ = 74708793936.

The previous prime is 112121212013. The next prime is 112121212031. The reversal of 112121212023 is 320212121211.

It is a de Polignac number, because none of the positive numbers 2^k-112121212023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112121211987 and 112121212005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112121212013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3205033 + ... + 3239826.

Almost surely, 2^112121212023 is an apocalyptic number.

112121212023 is a deficient number, since it is larger than the sum of its proper divisors (49915458097).

112121212023 is a wasteful number, since it uses less digits than its factorization.

112121212023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6446798 (or 6446795 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 112121212023 its reverse (320212121211), we get a palindrome (432333333234).

The spelling of 112121212023 in words is "one hundred twelve billion, one hundred twenty-one million, two hundred twelve thousand, twenty-three".