30128102806 has 8 divisors (see below), whose sum is σ = 45658053000. Its totient is φ = 14908751808.

The previous prime is 30128102803. The next prime is 30128102833. The reversal of 30128102806 is 60820182103.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30128102803) 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, 77649556 + ... + 77649943.

It is an arithmetic number, because the mean of its divisors is an integer number (5707256625).

Almost surely, 2^30128102806 is an apocalyptic number.

30128102806 is a deficient number, since it is larger than the sum of its proper divisors (15529950194).

30128102806 is a wasteful number, since it uses less digits than its factorization.

30128102806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155299598.

The product of its (nonzero) digits is 4608, while the sum is 31.

Adding to 30128102806 its reverse (60820182103), we get a palindrome (90948284909).

The spelling of 30128102806 in words is "thirty billion, one hundred twenty-eight million, one hundred two thousand, eight hundred six".