212032303309 has 4 divisors (see below), whose sum is σ = 223191898240. Its totient is φ = 200872708380.

The previous prime is 212032303291. The next prime is 212032303319. The reversal of 212032303309 is 903303230212.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212032303309 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 (212032303319) 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, 5579797437 + ... + 5579797474.

It is an arithmetic number, because the mean of its divisors is an integer number (55797974560).

Almost surely, 2^212032303309 is an apocalyptic number.

It is an amenable number.

212032303309 is a deficient number, since it is larger than the sum of its proper divisors (11159594931).

212032303309 is a wasteful number, since it uses less digits than its factorization.

212032303309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11159594930.

The product of its (nonzero) digits is 5832, while the sum is 28.

The spelling of 212032303309 in words is "two hundred twelve billion, thirty-two million, three hundred three thousand, three hundred nine".