212002303231 has 4 divisors (see below), whose sum is σ = 213947278600. Its totient is φ = 210057327864.

The previous prime is 212002303217. The next prime is 212002303307. The reversal of 212002303231 is 132303200212.

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 212002303231 - 2⁹ = 212002302719 is a prime.

It is a super-2 number, since 2×212002303231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212002303199 and 212002303208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212002303831) 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, 972487521 + ... + 972487738.

It is an arithmetic number, because the mean of its divisors is an integer number (53486819650).

Almost surely, 2^212002303231 is an apocalyptic number.

212002303231 is a deficient number, since it is larger than the sum of its proper divisors (1944975369).

212002303231 is a wasteful number, since it uses less digits than its factorization.

212002303231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1944975368.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 212002303231 its reverse (132303200212), we get a palindrome (344305503443).

The spelling of 212002303231 in words is "two hundred twelve billion, two million, three hundred three thousand, two hundred thirty-one".