30105315412123 has 32 divisors (see below), whose sum is σ = 34838981377920. Its totient is φ = 25481259417600.

The previous prime is 30105315412121. The next prime is 30105315412157. The reversal of 30105315412123 is 32121451350103.

It is not a de Polignac number, because 30105315412123 - 2¹ = 30105315412121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30105315412121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2040615915 + ... + 2040630667.

It is an arithmetic number, because the mean of its divisors is an integer number (1088718168060).

Almost surely, 2^{30105315412123} is an apocalyptic number.

30105315412123 is a deficient number, since it is larger than the sum of its proper divisors (4733665965797).

30105315412123 is a wasteful number, since it uses less digits than its factorization.

30105315412123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22327.

The product of its (nonzero) digits is 10800, while the sum is 31.

Adding to 30105315412123 its reverse (32121451350103), we get a palindrome (62226766762226).

The spelling of 30105315412123 in words is "thirty trillion, one hundred five billion, three hundred fifteen million, four hundred twelve thousand, one hundred twenty-three".