30123232129 has 2 divisors, whose sum is σ = 30123232130. Its totient is φ = 30123232128.

The previous prime is 30123232091. The next prime is 30123232193. The reversal of 30123232129 is 92123232103.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22306019904 + 7817212225 = 149352^2 + 88415^2 .

It is a cyclic number.

It is not a de Polignac number, because 30123232129 - 2¹³ = 30123223937 is a prime.

It is a super-2 number, since 2×30123232129² (a number of 22 digits) contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 30123232097 and 30123232106.

It is not a weakly prime, because it can be changed into another prime (30123230129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15061616064 + 15061616065.

It is an arithmetic number, because the mean of its divisors is an integer number (15061616065).

Almost surely, 2^30123232129 is an apocalyptic number.

It is an amenable number.

30123232129 is a deficient number, since it is larger than the sum of its proper divisors (1).

30123232129 is an equidigital number, since it uses as much as digits as its factorization.

30123232129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 28.

The spelling of 30123232129 in words is "thirty billion, one hundred twenty-three million, two hundred thirty-two thousand, one hundred twenty-nine".