100321220022013 has 4 divisors (see below), whose sum is σ = 106222468258620. Its totient is φ = 94419971785408.

The previous prime is 100321220021963. The next prime is 100321220022109. The reversal of 100321220022013 is 310220022123001.

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 62488424221444 + 37832795800569 = 7904962^2 + 6150837^2 .

It is a cyclic number.

It is not a de Polignac number, because 100321220022013 - 2²¹ = 100321217924861 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 (100321220022113) 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, 2950624118278 + ... + 2950624118311.

It is an arithmetic number, because the mean of its divisors is an integer number (26555617064655).

Almost surely, 2^{100321220022013} is an apocalyptic number.

It is an amenable number.

100321220022013 is a deficient number, since it is larger than the sum of its proper divisors (5901248236607).

100321220022013 is an equidigital number, since it uses as much as digits as its factorization.

100321220022013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5901248236606.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 100321220022013 its reverse (310220022123001), we get a palindrome (410541242145014).

The spelling of 100321220022013 in words is "one hundred trillion, three hundred twenty-one billion, two hundred twenty million, twenty-two thousand, thirteen".