212103012230123 has 16 divisors (see below), whose sum is σ = 242637993312000. Its totient is φ = 181626736953312.

The previous prime is 212103012230119. The next prime is 212103012230141. The reversal of 212103012230123 is 321032210301212.

It is not a de Polignac number, because 212103012230123 - 2² = 212103012230119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212103012239123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34565708 + ... + 40236726.

It is an arithmetic number, because the mean of its divisors is an integer number (15164874582000).

Almost surely, 2^{212103012230123} is an apocalyptic number.

212103012230123 is a deficient number, since it is larger than the sum of its proper divisors (30534981081877).

212103012230123 is a wasteful number, since it uses less digits than its factorization.

212103012230123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5676194.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 212103012230123 its reverse (321032210301212), we get a palindrome (533135222531335).

The spelling of 212103012230123 in words is "two hundred twelve trillion, one hundred three billion, twelve million, two hundred thirty thousand, one hundred twenty-three".