212430404343209 has 32 divisors (see below), whose sum is σ = 244898836224000. Its totient is φ = 182616378790464.

The previous prime is 212430404343197. The next prime is 212430404343217. The reversal of 212430404343209 is 902343404034212.

It is a cyclic number.

It is not a de Polignac number, because 212430404343209 - 2¹⁶ = 212430404277673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212430404343299) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 777464114 + ... + 777737300.

It is an arithmetic number, because the mean of its divisors is an integer number (7653088632000).

Almost surely, 2^{212430404343209} is an apocalyptic number.

It is an amenable number.

212430404343209 is a deficient number, since it is larger than the sum of its proper divisors (32468431880791).

212430404343209 is a wasteful number, since it uses less digits than its factorization.

212430404343209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326637.

The product of its (nonzero) digits is 497664, while the sum is 41.

The spelling of 212430404343209 in words is "two hundred twelve trillion, four hundred thirty billion, four hundred four million, three hundred forty-three thousand, two hundred nine".