212031120023 has 4 divisors (see below), whose sum is σ = 215624867880. Its totient is φ = 208437372168.

The previous prime is 212031120001. The next prime is 212031120089. The reversal of 212031120023 is 320021130212.

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 212031120023 - 2⁶ = 212031119959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212031119983 and 212031120010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212031120523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1796873840 + ... + 1796873957.

It is an arithmetic number, because the mean of its divisors is an integer number (53906216970).

Almost surely, 2^212031120023 is an apocalyptic number.

212031120023 is a deficient number, since it is larger than the sum of its proper divisors (3593747857).

212031120023 is an equidigital number, since it uses as much as digits as its factorization.

212031120023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3593747856.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 212031120023 its reverse (320021130212), we get a palindrome (532052250235).

The spelling of 212031120023 in words is "two hundred twelve billion, thirty-one million, one hundred twenty thousand, twenty-three".