823240470343 has 2 divisors, whose sum is σ = 823240470344. Its totient is φ = 823240470342.

The previous prime is 823240470263. The next prime is 823240470347. The reversal of 823240470343 is 343074042328.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 823240470343 - 2²⁵ = 823206915911 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 823240470296 and 823240470305.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (823240470347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 411620235171 + 411620235172.

It is an arithmetic number, because the mean of its divisors is an integer number (411620235172).

Almost surely, 2^823240470343 is an apocalyptic number.

823240470343 is a deficient number, since it is larger than the sum of its proper divisors (1).

823240470343 is an equidigital number, since it uses as much as digits as its factorization.

823240470343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 387072, while the sum is 40.

The spelling of 823240470343 in words is "eight hundred twenty-three billion, two hundred forty million, four hundred seventy thousand, three hundred forty-three".