30123020006 has 32 divisors (see below), whose sum is σ = 47799799488. Its totient is φ = 14208860160.

The previous prime is 30123019987. The next prime is 30123020009. The reversal of 30123020006 is 60002032103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30123020009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1295846 + ... + 1318886.

It is an arithmetic number, because the mean of its divisors is an integer number (1493743734).

Almost surely, 2^30123020006 is an apocalyptic number.

30123020006 is a deficient number, since it is larger than the sum of its proper divisors (17676779482).

30123020006 is a wasteful number, since it uses less digits than its factorization.

30123020006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23456.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 30123020006 its reverse (60002032103), we get a palindrome (90125052109).

The spelling of 30123020006 in words is "thirty billion, one hundred twenty-three million, twenty thousand, six".