1201003001 has 8 divisors (see below), whose sum is σ = 1314321984. Its totient is φ = 1088373520.

The previous prime is 1201002967. The next prime is 1201003003. The reversal of 1201003001 is 1003001021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1201003001 is a prime.

It is a super-2 number, since 2×1201003001² = 2884816416822012002, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1201003001.

It is not an unprimeable number, because it can be changed into a prime (1201003003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168725 + ... + 175698.

It is an arithmetic number, because the mean of its divisors is an integer number (164290248).

Almost surely, 2^1201003001 is an apocalyptic number.

1201003001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1201003001 is a deficient number, since it is larger than the sum of its proper divisors (113318983).

1201003001 is a wasteful number, since it uses less digits than its factorization.

1201003001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344751.

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 1201003001 is about 34655.4901999669. The cubic root of 1201003001 is about 1062.9545555126.

Adding to 1201003001 its reverse (1003001021), we get a palindrome (2204004022).

The spelling of 1201003001 in words is "one billion, two hundred one million, three thousand, one".