100321203023213 has 4 divisors (see below), whose sum is σ = 100544635547100. Its totient is φ = 100097770499328.

The previous prime is 100321203023191. The next prime is 100321203023287. The reversal of 100321203023213 is 312320302123001.

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 56612351677924 + 43708851345289 = 7524118^2 + 6611267^2 .

It is a cyclic number.

It is not a de Polignac number, because 100321203023213 - 2¹⁰ = 100321203022189 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 (100321203023813) 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, 111716261270 + ... + 111716262167.

It is an arithmetic number, because the mean of its divisors is an integer number (25136158886775).

Almost surely, 2^{100321203023213} is an apocalyptic number.

It is an amenable number.

100321203023213 is a deficient number, since it is larger than the sum of its proper divisors (223432523887).

100321203023213 is an equidigital number, since it uses as much as digits as its factorization.

100321203023213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223432523886.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 100321203023213 its reverse (312320302123001), we get a palindrome (412641505146214).

The spelling of 100321203023213 in words is "one hundred trillion, three hundred twenty-one billion, two hundred three million, twenty-three thousand, two hundred thirteen".