100002021313 has 4 divisors (see below), whose sum is σ = 101125639620. Its totient is φ = 98878403008.

The previous prime is 100002021293. The next prime is 100002021337. The reversal of 100002021313 is 313120200001.

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

It can be written as a sum of positive squares in 2 ways, for example, as 18347244304 + 81654777009 = 135452^2 + 285753^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100002021313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100002021293 and 100002021302.

It is not an unprimeable number, because it can be changed into a prime (100002024313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 561809020 + ... + 561809197.

It is an arithmetic number, because the mean of its divisors is an integer number (25281409905).

Almost surely, 2^100002021313 is an apocalyptic number.

It is an amenable number.

100002021313 is a deficient number, since it is larger than the sum of its proper divisors (1123618307).

100002021313 is an equidigital number, since it uses as much as digits as its factorization.

100002021313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1123618306.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 100002021313 its reverse (313120200001), we get a palindrome (413122221314).

The spelling of 100002021313 in words is "one hundred billion, two million, twenty-one thousand, three hundred thirteen".