212303118238 has 4 divisors (see below), whose sum is σ = 318454677360. Its totient is φ = 106151559118.

The previous prime is 212303118229. The next prime is 212303118239. The reversal of 212303118238 is 832811303212.

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

It is a super-2 number, since 2×212303118238² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212303118239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53075779558 + ... + 53075779561.

It is an arithmetic number, because the mean of its divisors is an integer number (79613669340).

Almost surely, 2^212303118238 is an apocalyptic number.

212303118238 is a deficient number, since it is larger than the sum of its proper divisors (106151559122).

212303118238 is a wasteful number, since it uses less digits than its factorization.

212303118238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106151559121.

The product of its (nonzero) digits is 13824, while the sum is 34.

The spelling of 212303118238 in words is "two hundred twelve billion, three hundred three million, one hundred eighteen thousand, two hundred thirty-eight".