100003312021 has 16 divisors (see below), whose sum is σ = 105738946560. Its totient is φ = 94436778240.

The previous prime is 100003311983. The next prime is 100003312027. The reversal of 100003312021 is 120213300001.

It is a cyclic number.

It is not a de Polignac number, because 100003312021 - 2⁹ = 100003311509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100003311992 and 100003312010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100003312027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 389175 + ... + 592843.

It is an arithmetic number, because the mean of its divisors is an integer number (6608684160).

Almost surely, 2^100003312021 is an apocalyptic number.

It is an amenable number.

100003312021 is a deficient number, since it is larger than the sum of its proper divisors (5735634539).

100003312021 is a wasteful number, since it uses less digits than its factorization.

100003312021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204084.

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

Adding to 100003312021 its reverse (120213300001), we get a palindrome (220216612022).

The spelling of 100003312021 in words is "one hundred billion, three million, three hundred twelve thousand, twenty-one".