1001200969 has 2 divisors, whose sum is σ = 1001200970. Its totient is φ = 1001200968.

The previous prime is 1001200943. The next prime is 1001200999. The reversal of 1001200969 is 9690021001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 666310969 + 334890000 = 25813^2 + 18300^2 .

It is an emirp because it is prime and its reverse (9690021001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1001200969 - 2⁹ = 1001200457 is a prime.

It is a super-2 number, since 2×1001200969² = 2004806760653077922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1001200939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500600484 + 500600485.

It is an arithmetic number, because the mean of its divisors is an integer number (500600485).

Almost surely, 2^1001200969 is an apocalyptic number.

It is an amenable number.

1001200969 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001200969 is an equidigital number, since it uses as much as digits as its factorization.

1001200969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 1001200969 is about 31641.7598910048. The cubic root of 1001200969 is about 1000.4001628483.

The spelling of 1001200969 in words is "one billion, one million, two hundred thousand, nine hundred sixty-nine".