1326120823 has 2 divisors, whose sum is σ = 1326120824. Its totient is φ = 1326120822.

The previous prime is 1326120799. The next prime is 1326120869. The reversal of 1326120823 is 3280216231.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1326120823 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1326120791 and 1326120800.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1326120023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 663060411 + 663060412.

It is an arithmetic number, because the mean of its divisors is an integer number (663060412).

Almost surely, 2^1326120823 is an apocalyptic number.

1326120823 is a deficient number, since it is larger than the sum of its proper divisors (1).

1326120823 is an equidigital number, since it uses as much as digits as its factorization.

1326120823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 1326120823 is about 36415.9418798965. The cubic root of 1326120823 is about 1098.6542283203.

The spelling of 1326120823 in words is "one billion, three hundred twenty-six million, one hundred twenty thousand, eight hundred twenty-three".