20430112112929 has 2 divisors, whose sum is σ = 20430112112930. Its totient is φ = 20430112112928.

The previous prime is 20430112112909. The next prime is 20430112112939. The reversal of 20430112112929 is 92921121103402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20324453310225 + 105658802704 = 4508265^2 + 325052^2 .

It is a cyclic number.

It is not a de Polignac number, because 20430112112929 - 2²⁹ = 20429575242017 is a prime.

It is not a weakly prime, because it can be changed into another prime (20430112112909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10215056056464 + 10215056056465.

It is an arithmetic number, because the mean of its divisors is an integer number (10215056056465).

Almost surely, 2^{20430112112929} is an apocalyptic number.

It is an amenable number.

20430112112929 is a deficient number, since it is larger than the sum of its proper divisors (1).

20430112112929 is an equidigital number, since it uses as much as digits as its factorization.

20430112112929 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 37.

The spelling of 20430112112929 in words is "twenty trillion, four hundred thirty billion, one hundred twelve million, one hundred twelve thousand, nine hundred twenty-nine".