30555011129 has 2 divisors, whose sum is σ = 30555011130. Its totient is φ = 30555011128.

The previous prime is 30555011111. The next prime is 30555011131. The reversal of 30555011129 is 92111055503.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24917253904 + 5637757225 = 157852^2 + 75085^2 .

It is an emirp because it is prime and its reverse (92111055503) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30555011129 is a prime.

Together with 30555011131, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 30555011095 and 30555011104.

It is not a weakly prime, because it can be changed into another prime (30555011159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15277505564 + 15277505565.

It is an arithmetic number, because the mean of its divisors is an integer number (15277505565).

Almost surely, 2^30555011129 is an apocalyptic number.

It is an amenable number.

30555011129 is a deficient number, since it is larger than the sum of its proper divisors (1).

30555011129 is an equidigital number, since it uses as much as digits as its factorization.

30555011129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6750, while the sum is 32.

The spelling of 30555011129 in words is "thirty billion, five hundred fifty-five million, eleven thousand, one hundred twenty-nine".