1232001322009 has 2 divisors, whose sum is σ = 1232001322010. Its totient is φ = 1232001322008.

The previous prime is 1232001321989. The next prime is 1232001322063. The reversal of 1232001322009 is 9002231002321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 906821961984 + 325179360025 = 952272^2 + 570245^2 .

It is a cyclic number.

It is not a de Polignac number, because 1232001322009 - 2²¹ = 1231999224857 is a prime.

It is not a weakly prime, because it can be changed into another prime (1232001322609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616000661004 + 616000661005.

It is an arithmetic number, because the mean of its divisors is an integer number (616000661005).

Almost surely, 2^{1232001322009} is an apocalyptic number.

It is an amenable number.

1232001322009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1232001322009 is an equidigital number, since it uses as much as digits as its factorization.

1232001322009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 25.

The spelling of 1232001322009 in words is "one trillion, two hundred thirty-two billion, one million, three hundred twenty-two thousand, nine".