302103000021 has 4 divisors (see below), whose sum is σ = 402804000032. Its totient is φ = 201402000012.

The previous prime is 302103000007. The next prime is 302103000083. The reversal of 302103000021 is 120000301203.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 302103000021 - 2³⁷ = 164664046549 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 302102999970 and 302103000006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (302103000091) 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, 50350500001 + ... + 50350500006.

It is an arithmetic number, because the mean of its divisors is an integer number (100701000008).

Almost surely, 2^302103000021 is an apocalyptic number.

It is an amenable number.

302103000021 is a deficient number, since it is larger than the sum of its proper divisors (100701000011).

302103000021 is a wasteful number, since it uses less digits than its factorization.

302103000021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100701000010.

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 302103000021 its reverse (120000301203), we get a palindrome (422103301224).

The spelling of 302103000021 in words is "three hundred two billion, one hundred three million, twenty-one", and thus it is an aban number.