2104421002031 has 4 divisors (see below), whose sum is σ = 2104424110200. Its totient is φ = 2104417893864.

The previous prime is 2104421001979. The next prime is 2104421002037. The reversal of 2104421002031 is 1302001244012.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2104421002031 - 2³⁰ = 2103347260207 is a prime.

It is a super-2 number, since 2×2104421002031² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2104421001994 and 2104421002012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2104421002037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59141 + ... + 2052398.

It is an arithmetic number, because the mean of its divisors is an integer number (526106027550).

Almost surely, 2^{2104421002031} is an apocalyptic number.

2104421002031 is a deficient number, since it is larger than the sum of its proper divisors (3108169).

2104421002031 is an equidigital number, since it uses as much as digits as its factorization.

2104421002031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3108168.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 2104421002031 its reverse (1302001244012), we get a palindrome (3406422246043).

The spelling of 2104421002031 in words is "two trillion, one hundred four billion, four hundred twenty-one million, two thousand, thirty-one".