1173210823 has 2 divisors, whose sum is σ = 1173210824. Its totient is φ = 1173210822.

The previous prime is 1173210821. The next prime is 1173210833. The reversal of 1173210823 is 3280123711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1173210823 - 2¹ = 1173210821 is a prime.

Together with 1173210821, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1173210791 and 1173210800.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1173210821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 586605411 + 586605412.

It is an arithmetic number, because the mean of its divisors is an integer number (586605412).

Almost surely, 2^1173210823 is an apocalyptic number.

1173210823 is a deficient number, since it is larger than the sum of its proper divisors (1).

1173210823 is an equidigital number, since it uses as much as digits as its factorization.

1173210823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 1173210823 is about 34252.1652308288. The cubic root of 1173210823 is about 1054.6912756889.

The spelling of 1173210823 in words is "one billion, one hundred seventy-three million, two hundred ten thousand, eight hundred twenty-three".