1000021332113 has 4 divisors (see below), whose sum is σ = 1018889659188. Its totient is φ = 981153005040.

The previous prime is 1000021332083. The next prime is 1000021332143. The reversal of 1000021332113 is 3112331200001.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1000021332083) and next prime (1000021332143).

It can be written as a sum of positive squares in 2 ways, for example, as 610167201424 + 389854130689 = 781132^2 + 624383^2 .

It is a cyclic number.

It is not a de Polignac number, because 1000021332113 - 2²² = 1000017137809 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1000021332091 and 1000021332100.

It is not an unprimeable number, because it can be changed into a prime (1000021332143) 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, 9434163458 + ... + 9434163563.

It is an arithmetic number, because the mean of its divisors is an integer number (254722414797).

Almost surely, 2^{1000021332113} is an apocalyptic number.

It is an amenable number.

1000021332113 is a deficient number, since it is larger than the sum of its proper divisors (18868327075).

1000021332113 is an equidigital number, since it uses as much as digits as its factorization.

1000021332113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18868327074.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 1000021332113 its reverse (3112331200001), we get a palindrome (4112352532114).

The spelling of 1000021332113 in words is "one trillion, twenty-one million, three hundred thirty-two thousand, one hundred thirteen".