30123232106 has 16 divisors (see below), whose sum is σ = 49315769568. Its totient is φ = 13685931600.

The previous prime is 30123232091. The next prime is 30123232129. The reversal of 30123232106 is 60123232103.

It is a super-2 number, since 2×30123232106² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274385 + ... + 368148.

It is an arithmetic number, because the mean of its divisors is an integer number (3082235598).

Almost surely, 2^30123232106 is an apocalyptic number.

30123232106 is a deficient number, since it is larger than the sum of its proper divisors (19192537462).

30123232106 is a wasteful number, since it uses less digits than its factorization.

30123232106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644677.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 30123232106 its reverse (60123232103), we get a palindrome (90246464209).

The spelling of 30123232106 in words is "thirty billion, one hundred twenty-three million, two hundred thirty-two thousand, one hundred six".