100031002120021 has 8 divisors (see below), whose sum is σ = 116753510073600. Its totient is φ = 83916585364848.

The previous prime is 100031002120019. The next prime is 100031002120057. The reversal of 100031002120021 is 120021200130001.

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 100031002120021 - 2¹ = 100031002120019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100031002119983 and 100031002120010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100031002120921) 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, 152022799246 + ... + 152022799903.

It is an arithmetic number, because the mean of its divisors is an integer number (14594188759200).

Almost surely, 2^{100031002120021} is an apocalyptic number.

It is an amenable number.

100031002120021 is a deficient number, since it is larger than the sum of its proper divisors (16722507953579).

100031002120021 is an equidigital number, since it uses as much as digits as its factorization.

100031002120021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304045599203.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 100031002120021 its reverse (120021200130001), we get a palindrome (220052202250022).

The spelling of 100031002120021 in words is "one hundred trillion, thirty-one billion, two million, one hundred twenty thousand, twenty-one".