2131112023 has 4 divisors (see below), whose sum is σ = 2176454880. Its totient is φ = 2085769168.

The previous prime is 2131112021. The next prime is 2131112047. The reversal of 2131112023 is 3202111312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2131112023 - 2¹ = 2131112021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2131111988 and 2131112006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131112021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22671358 + ... + 22671451.

It is an arithmetic number, because the mean of its divisors is an integer number (544113720).

Almost surely, 2^2131112023 is an apocalyptic number.

2131112023 is a deficient number, since it is larger than the sum of its proper divisors (45342857).

2131112023 is an equidigital number, since it uses as much as digits as its factorization.

2131112023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45342856.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2131112023 is about 46163.9688826687. The cubic root of 2131112023 is about 1286.8722219028.

Adding to 2131112023 its reverse (3202111312), we get a palindrome (5333223335).

The spelling of 2131112023 in words is "two billion, one hundred thirty-one million, one hundred twelve thousand, twenty-three".