20332132129 has 2 divisors, whose sum is σ = 20332132130. Its totient is φ = 20332132128.

The previous prime is 20332132103. The next prime is 20332132157. The reversal of 20332132129 is 92123123302.

It is an a-pointer prime, because the next prime (20332132157) can be obtained adding 20332132129 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19174771729 + 1157360400 = 138473^2 + 34020^2 .

It is a cyclic number.

It is not a de Polignac number, because 20332132129 - 2¹¹ = 20332130081 is a prime.

It is a super-2 number, since 2×20332132129² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20332132097 and 20332132106.

It is not a weakly prime, because it can be changed into another prime (20332132229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10166066064 + 10166066065.

It is an arithmetic number, because the mean of its divisors is an integer number (10166066065).

Almost surely, 2^20332132129 is an apocalyptic number.

It is an amenable number.

20332132129 is a deficient number, since it is larger than the sum of its proper divisors (1).

20332132129 is an equidigital number, since it uses as much as digits as its factorization.

20332132129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 28.

The spelling of 20332132129 in words is "twenty billion, three hundred thirty-two million, one hundred thirty-two thousand, one hundred twenty-nine".