1001202011 has 4 divisors (see below), whose sum is σ = 1001793000. Its totient is φ = 1000611024.

The previous prime is 1001201977. The next prime is 1001202019. The reversal of 1001202011 is 1102021001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1102021001 = 41 ⋅26878561.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1001202011 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1001202011.

It is not an unprimeable number, because it can be changed into a prime (1001202019) 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 in 3 ways as a sum of consecutive naturals, for example, 292946 + ... + 296343.

It is an arithmetic number, because the mean of its divisors is an integer number (250448250).

Almost surely, 2^1001202011 is an apocalyptic number.

1001202011 is a deficient number, since it is larger than the sum of its proper divisors (590989).

1001202011 is an equidigital number, since it uses as much as digits as its factorization.

1001202011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590988.

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 1001202011 is about 31641.7763565828. The cubic root of 1001202011 is about 1000.4005099037.

Adding to 1001202011 its reverse (1102021001), we get a palindrome (2103223012).

The spelling of 1001202011 in words is "one billion, one million, two hundred two thousand, eleven".