100031020321 has 8 divisors (see below), whose sum is σ = 100770647040. Its totient is φ = 99291531168.

The previous prime is 100031020289. The next prime is 100031020333. The reversal of 100031020321 is 123020130001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100031020321 - 2⁵ = 100031020289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100031020391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1775040 + ... + 1830526.

It is an arithmetic number, because the mean of its divisors is an integer number (12596330880).

Almost surely, 2^100031020321 is an apocalyptic number.

It is an amenable number.

100031020321 is a deficient number, since it is larger than the sum of its proper divisors (739626719).

100031020321 is a wasteful number, since it uses less digits than its factorization.

100031020321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68783.

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

Adding to 100031020321 its reverse (123020130001), we get a palindrome (223051150322).

The spelling of 100031020321 in words is "one hundred billion, thirty-one million, twenty thousand, three hundred twenty-one".