2357723223209 has 2 divisors, whose sum is σ = 2357723223210. Its totient is φ = 2357723223208.

The previous prime is 2357723223197. The next prime is 2357723223227. The reversal of 2357723223209 is 9023223277532.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2092498223209 + 265225000000 = 1446547^2 + 515000^2 .

It is a cyclic number.

It is not a de Polignac number, because 2357723223209 - 2³⁶ = 2289003746473 is a prime.

It is not a weakly prime, because it can be changed into another prime (2357723223299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1178861611604 + 1178861611605.

It is an arithmetic number, because the mean of its divisors is an integer number (1178861611605).

Almost surely, 2^{2357723223209} is an apocalyptic number.

It is an amenable number.

2357723223209 is a deficient number, since it is larger than the sum of its proper divisors (1).

2357723223209 is an equidigital number, since it uses as much as digits as its factorization.

2357723223209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1905120, while the sum is 47.

The spelling of 2357723223209 in words is "two trillion, three hundred fifty-seven billion, seven hundred twenty-three million, two hundred twenty-three thousand, two hundred nine".