30123101232173 has 2 divisors, whose sum is σ = 30123101232174. Its totient is φ = 30123101232172.

The previous prime is 30123101232139. The next prime is 30123101232181. The reversal of 30123101232173 is 37123210132103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29665255482724 + 457845749449 = 5446582^2 + 676643^2 .

It is a cyclic number.

It is not a de Polignac number, because 30123101232173 - 2⁴⁰ = 29023589604397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30123101232193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15061550616086 + 15061550616087.

It is an arithmetic number, because the mean of its divisors is an integer number (15061550616087).

Almost surely, 2^{30123101232173} is an apocalyptic number.

It is an amenable number.

30123101232173 is a deficient number, since it is larger than the sum of its proper divisors (1).

30123101232173 is an equidigital number, since it uses as much as digits as its factorization.

30123101232173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 29.

Adding to 30123101232173 its reverse (37123210132103), we get a palindrome (67246311364276).

The spelling of 30123101232173 in words is "thirty trillion, one hundred twenty-three billion, one hundred one million, two hundred thirty-two thousand, one hundred seventy-three".