20123203110229 has 2 divisors, whose sum is σ = 20123203110230. Its totient is φ = 20123203110228.

The previous prime is 20123203110223. The next prime is 20123203110259. The reversal of 20123203110229 is 92201130232102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16751609394129 + 3371593716100 = 4092873^2 + 1836190^2 .

It is a cyclic number.

It is not a de Polignac number, because 20123203110229 - 2²⁹ = 20122666239317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20123203110197 and 20123203110206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20123203110223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10061601555114 + 10061601555115.

It is an arithmetic number, because the mean of its divisors is an integer number (10061601555115).

Almost surely, 2^{20123203110229} is an apocalyptic number.

It is an amenable number.

20123203110229 is a deficient number, since it is larger than the sum of its proper divisors (1).

20123203110229 is an equidigital number, since it uses as much as digits as its factorization.

20123203110229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 28.

The spelling of 20123203110229 in words is "twenty trillion, one hundred twenty-three billion, two hundred three million, one hundred ten thousand, two hundred twenty-nine".