30213203129 has 2 divisors, whose sum is σ = 30213203130. Its totient is φ = 30213203128.

The previous prime is 30213203101. The next prime is 30213203143. The reversal of 30213203129 is 92130231203.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22354735225 + 7858467904 = 149515^2 + 88648^2 .

It is a cyclic number.

It is not a de Polignac number, because 30213203129 - 2¹⁶ = 30213137593 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30213203098 and 30213203107.

It is not a weakly prime, because it can be changed into another prime (30213203159) by changing a digit.

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 as a sum of consecutive naturals, namely, 15106601564 + 15106601565.

It is an arithmetic number, because the mean of its divisors is an integer number (15106601565).

Almost surely, 2^30213203129 is an apocalyptic number.

It is an amenable number.

30213203129 is a deficient number, since it is larger than the sum of its proper divisors (1).

30213203129 is an equidigital number, since it uses as much as digits as its factorization.

30213203129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 26.

The spelling of 30213203129 in words is "thirty billion, two hundred thirteen million, two hundred three thousand, one hundred twenty-nine".