212121000232003 has 4 divisors (see below), whose sum is σ = 212121362195248. Its totient is φ = 212120638268760.

The previous prime is 212121000231961. The next prime is 212121000232019. The reversal of 212121000232003 is 300232000121212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212121000232003 is a prime.

It is a super-3 number, since 3×212121000232003³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212121000232093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180101151 + ... + 181275112.

It is an arithmetic number, because the mean of its divisors is an integer number (53030340548812).

Almost surely, 2^{212121000232003} is an apocalyptic number.

212121000232003 is a deficient number, since it is larger than the sum of its proper divisors (361963245).

212121000232003 is an equidigital number, since it uses as much as digits as its factorization.

212121000232003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361963244.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 212121000232003 its reverse (300232000121212), we get a palindrome (512353000353215).

The spelling of 212121000232003 in words is "two hundred twelve trillion, one hundred twenty-one billion, two hundred thirty-two thousand, three".