39343312213 has 2 divisors, whose sum is σ = 39343312214. Its totient is φ = 39343312212.

The previous prime is 39343312199. The next prime is 39343312219. The reversal of 39343312213 is 31221334393.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39337962244 + 5349969 = 198338^2 + 2313^2 .

It is a cyclic number.

It is not a de Polignac number, because 39343312213 - 2⁵ = 39343312181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39343312219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19671656106 + 19671656107.

It is an arithmetic number, because the mean of its divisors is an integer number (19671656107).

Almost surely, 2^39343312213 is an apocalyptic number.

It is an amenable number.

39343312213 is a deficient number, since it is larger than the sum of its proper divisors (1).

39343312213 is an equidigital number, since it uses as much as digits as its factorization.

39343312213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34992, while the sum is 34.

The spelling of 39343312213 in words is "thirty-nine billion, three hundred forty-three million, three hundred twelve thousand, two hundred thirteen".