20111030230129 has 2 divisors, whose sum is σ = 20111030230130. Its totient is φ = 20111030230128.

The previous prime is 20111030230037. The next prime is 20111030230133. The reversal of 20111030230129 is 92103203011102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14355119104225 + 5755911125904 = 3788815^2 + 2399148^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20111030230129 is a prime.

It is not a weakly prime, because it can be changed into another prime (20111030230229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10055515115064 + 10055515115065.

It is an arithmetic number, because the mean of its divisors is an integer number (10055515115065).

Almost surely, 2^{20111030230129} is an apocalyptic number.

It is an amenable number.

20111030230129 is a deficient number, since it is larger than the sum of its proper divisors (1).

20111030230129 is an equidigital number, since it uses as much as digits as its factorization.

20111030230129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 25.

The spelling of 20111030230129 in words is "twenty trillion, one hundred eleven billion, thirty million, two hundred thirty thousand, one hundred twenty-nine".