212021023023 has 12 divisors (see below), whose sum is σ = 306660391648. Its totient is φ = 141159132000.

The previous prime is 212021023013. The next prime is 212021023037. The reversal of 212021023023 is 320320120212.

It is not a de Polignac number, because 212021023023 - 2¹² = 212021018927 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212021022987 and 212021023005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212021023013) 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, 15677590 + ... + 15691107.

Almost surely, 2^212021023023 is an apocalyptic number.

212021023023 is a deficient number, since it is larger than the sum of its proper divisors (94639368625).

212021023023 is a wasteful number, since it uses less digits than its factorization.

212021023023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31369454 (or 31369451 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 212021023023 its reverse (320320120212), we get a palindrome (532341143235).

The spelling of 212021023023 in words is "two hundred twelve billion, twenty-one million, twenty-three thousand, twenty-three".