1320922973 has 2 divisors, whose sum is σ = 1320922974. Its totient is φ = 1320922972.

The previous prime is 1320922963. The next prime is 1320922987. The reversal of 1320922973 is 3792290231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1145280964 + 175642009 = 33842^2 + 13253^2 .

It is a cyclic number.

It is not a de Polignac number, because 1320922973 - 2⁸ = 1320922717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1320922963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660461486 + 660461487.

It is an arithmetic number, because the mean of its divisors is an integer number (660461487).

Almost surely, 2^1320922973 is an apocalyptic number.

It is an amenable number.

1320922973 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320922973 is an equidigital number, since it uses as much as digits as its factorization.

1320922973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 1320922973 is about 36344.5040274317. The cubic root of 1320922973 is about 1097.2169240683.

The spelling of 1320922973 in words is "one billion, three hundred twenty million, nine hundred twenty-two thousand, nine hundred seventy-three".