20134821229 has 2 divisors, whose sum is σ = 20134821230. Its totient is φ = 20134821228.

The previous prime is 20134821221. The next prime is 20134821313. The reversal of 20134821229 is 92212843102.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18735313129 + 1399508100 = 136877^2 + 37410^2 .

It is a cyclic number.

It is not a de Polignac number, because 20134821229 - 2³ = 20134821221 is a prime.

It is a super-2 number, since 2×20134821229² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20134821194 and 20134821203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20134821221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10067410614 + 10067410615.

It is an arithmetic number, because the mean of its divisors is an integer number (10067410615).

Almost surely, 2^20134821229 is an apocalyptic number.

It is an amenable number.

20134821229 is a deficient number, since it is larger than the sum of its proper divisors (1).

20134821229 is an equidigital number, since it uses as much as digits as its factorization.

20134821229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 34.

The spelling of 20134821229 in words is "twenty billion, one hundred thirty-four million, eight hundred twenty-one thousand, two hundred twenty-nine".