212421340234023 has 8 divisors (see below), whose sum is σ = 283230225913200. Its totient is φ = 141613340688768.

The previous prime is 212421340234007. The next prime is 212421340234039. The reversal of 212421340234023 is 320432043124212.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (212421340234007) and next prime (212421340234039).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 212421340234023 - 2⁴ = 212421340234007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212421340234123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220973938 + ... + 221933151.

It is an arithmetic number, because the mean of its divisors is an integer number (35403778239150).

Almost surely, 2^{212421340234023} is an apocalyptic number.

212421340234023 is a deficient number, since it is larger than the sum of its proper divisors (70808885679177).

212421340234023 is a wasteful number, since it uses less digits than its factorization.

212421340234023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443066961.

The product of its (nonzero) digits is 55296, while the sum is 33.

Adding to 212421340234023 its reverse (320432043124212), we get a palindrome (532853383358235).

The spelling of 212421340234023 in words is "two hundred twelve trillion, four hundred twenty-one billion, three hundred forty million, two hundred thirty-four thousand, twenty-three".