20012113229 has 2 divisors, whose sum is σ = 20012113230. Its totient is φ = 20012113228.

The previous prime is 20012113157. The next prime is 20012113301. The reversal of 20012113229 is 92231121002.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (20012113157) and next prime (20012113301).

It can be written as a sum of positive squares in only one way, i.e., 18009103204 + 2003010025 = 134198^2 + 44755^2 .

It is a cyclic number.

It is not a de Polignac number, because 20012113229 - 2⁸ = 20012112973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20012112229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006056614 + 10006056615.

It is an arithmetic number, because the mean of its divisors is an integer number (10006056615).

Almost surely, 2^20012113229 is an apocalyptic number.

It is an amenable number.

20012113229 is a deficient number, since it is larger than the sum of its proper divisors (1).

20012113229 is an equidigital number, since it uses as much as digits as its factorization.

20012113229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The spelling of 20012113229 in words is "twenty billion, twelve million, one hundred thirteen thousand, two hundred twenty-nine".