1001020113213 has 4 divisors (see below), whose sum is σ = 1334693484288. Its totient is φ = 667346742140.

The previous prime is 1001020113193. The next prime is 1001020113253. The reversal of 1001020113213 is 3123110201001.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 1001020113213 - 2²² = 1001015918909 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1001020113192 and 1001020113201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001020113253) 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 3 ways as a sum of consecutive naturals, for example, 166836685533 + ... + 166836685538.

It is an arithmetic number, because the mean of its divisors is an integer number (333673371072).

Almost surely, 2^{1001020113213} is an apocalyptic number.

It is an amenable number.

1001020113213 is a deficient number, since it is larger than the sum of its proper divisors (333673371075).

1001020113213 is an equidigital number, since it uses as much as digits as its factorization.

1001020113213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333673371074.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 1001020113213 its reverse (3123110201001), we get a palindrome (4124130314214).

The spelling of 1001020113213 in words is "one trillion, one billion, twenty million, one hundred thirteen thousand, two hundred thirteen".