1230220993 has 2 divisors, whose sum is σ = 1230220994. Its totient is φ = 1230220992.

The previous prime is 1230220973. The next prime is 1230221017. The reversal of 1230220993 is 3990220321.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1131178689 + 99042304 = 33633^2 + 9952^2 .

It is a cyclic number.

It is not a de Polignac number, because 1230220993 - 2²⁵ = 1196666561 is a prime.

It is not a weakly prime, because it can be changed into another prime (1230220903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615110496 + 615110497.

It is an arithmetic number, because the mean of its divisors is an integer number (615110497).

Almost surely, 2^1230220993 is an apocalyptic number.

It is an amenable number.

1230220993 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230220993 is an equidigital number, since it uses as much as digits as its factorization.

1230220993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 1230220993 is about 35074.5063115648. The cubic root of 1230220993 is about 1071.5054341464.

The spelling of 1230220993 in words is "one billion, two hundred thirty million, two hundred twenty thousand, nine hundred ninety-three".