1001202013 has 4 divisors (see below), whose sum is σ = 1144230880. Its totient is φ = 858173148.

The previous prime is 1001201977. The next prime is 1001202019. The reversal of 1001202013 is 3102021001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3102021001 = 83 ⋅37373747.

It is not a de Polignac number, because 1001202013 - 2⁹ = 1001201501 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 71514423 + ... + 71514436.

It is an arithmetic number, because the mean of its divisors is an integer number (286057720).

Almost surely, 2^1001202013 is an apocalyptic number.

It is an amenable number.

1001202013 is a deficient number, since it is larger than the sum of its proper divisors (143028867).

1001202013 is an equidigital number, since it uses as much as digits as its factorization.

1001202013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143028866.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1001202013 is about 31641.7763881866. The cubic root of 1001202013 is about 1000.4005105699.

Adding to 1001202013 its reverse (3102021001), we get a palindrome (4103223014).

The spelling of 1001202013 in words is "one billion, one million, two hundred two thousand, thirteen".