212021102303 has 4 divisors (see below), whose sum is σ = 214002608040. Its totient is φ = 210039596568.

The previous prime is 212021102273. The next prime is 212021102323. The reversal of 212021102303 is 303201120212.

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

It is a cyclic number.

It is not a de Polignac number, because 212021102303 - 2³⁰ = 210947360479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212021102323) 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, 990752708 + ... + 990752921.

It is an arithmetic number, because the mean of its divisors is an integer number (53500652010).

Almost surely, 2^212021102303 is an apocalyptic number.

212021102303 is a deficient number, since it is larger than the sum of its proper divisors (1981505737).

212021102303 is a wasteful number, since it uses less digits than its factorization.

212021102303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1981505736.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 212021102303 its reverse (303201120212), we get a palindrome (515222222515).

The spelling of 212021102303 in words is "two hundred twelve billion, twenty-one million, one hundred two thousand, three hundred three".