1320123283 has 2 divisors, whose sum is σ = 1320123284. Its totient is φ = 1320123282.

The previous prime is 1320123271. The next prime is 1320123323. The reversal of 1320123283 is 3823210231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1320123283 - 2²¹ = 1318026131 is a prime.

It is not a weakly prime, because it can be changed into another prime (1320123223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660061641 + 660061642.

It is an arithmetic number, because the mean of its divisors is an integer number (660061642).

Almost surely, 2^1320123283 is an apocalyptic number.

1320123283 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320123283 is an equidigital number, since it uses as much as digits as its factorization.

1320123283 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 1320123283 is about 36333.5008360053. The cubic root of 1320123283 is about 1096.9954601005.

The spelling of 1320123283 in words is "one billion, three hundred twenty million, one hundred twenty-three thousand, two hundred eighty-three".