30000002973 has 4 divisors (see below), whose sum is σ = 40000003968. Its totient is φ = 20000001980.

The previous prime is 30000002939. The next prime is 30000003001. The reversal of 30000002973 is 37920000003.

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 a cyclic number.

It is not a de Polignac number, because 30000002973 - 2⁶ = 30000002909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30000000973) 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, 5000000493 + ... + 5000000498.

It is an arithmetic number, because the mean of its divisors is an integer number (10000000992).

Almost surely, 2^30000002973 is an apocalyptic number.

It is an amenable number.

30000002973 is a deficient number, since it is larger than the sum of its proper divisors (10000000995).

30000002973 is a wasteful number, since it uses less digits than its factorization.

30000002973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10000000994.

The product of its (nonzero) digits is 1134, while the sum is 24.

Adding to 30000002973 its reverse (37920000003), we get a palindrome (67920002976).

The spelling of 30000002973 in words is "thirty billion, two thousand, nine hundred seventy-three".