212103023 has 24 divisors (see below), whose sum is σ = 252228096. Its totient is φ = 176677200.

The previous prime is 212103011. The next prime is 212103037. The reversal of 212103023 is 320301212.

It is a happy number.

It is not a de Polignac number, because 212103023 - 2⁶ = 212102959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212102989 and 212103007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212103043) 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 23 ways as a sum of consecutive naturals, for example, 122240 + ... + 123962.

It is an arithmetic number, because the mean of its divisors is an integer number (10509504).

Almost surely, 2^212103023 is an apocalyptic number.

212103023 is a deficient number, since it is larger than the sum of its proper divisors (40125073).

212103023 is a wasteful number, since it uses less digits than its factorization.

212103023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1803 (or 1784 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 212103023 is about 14563.7571732023. The cubic root of 212103023 is about 596.3697679526.

Adding to 212103023 its reverse (320301212), we get a palindrome (532404235).

The spelling of 212103023 in words is "two hundred twelve million, one hundred three thousand, twenty-three".