40320212142209 has 2 divisors, whose sum is σ = 40320212142210. Its totient is φ = 40320212142208.

The previous prime is 40320212142193. The next prime is 40320212142269. The reversal of 40320212142209 is 90224121202304.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36161761306225 + 4158450835984 = 6013465^2 + 2039228^2 .

It is a cyclic number.

It is not a de Polignac number, because 40320212142209 - 2⁴ = 40320212142193 is a prime.

It is not a weakly prime, because it can be changed into another prime (40320212142269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20160106071104 + 20160106071105.

It is an arithmetic number, because the mean of its divisors is an integer number (20160106071105).

Almost surely, 2^{40320212142209} is an apocalyptic number.

It is an amenable number.

40320212142209 is a deficient number, since it is larger than the sum of its proper divisors (1).

40320212142209 is an equidigital number, since it uses as much as digits as its factorization.

40320212142209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 32.

The spelling of 40320212142209 in words is "forty trillion, three hundred twenty billion, two hundred twelve million, one hundred forty-two thousand, two hundred nine".