20001032032129 has 2 divisors, whose sum is σ = 20001032032130. Its totient is φ = 20001032032128.

The previous prime is 20001032032067. The next prime is 20001032032169. The reversal of 20001032032129 is 92123023010002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17864020762225 + 2137011269904 = 4226585^2 + 1461852^2 .

It is a cyclic number.

It is not a de Polignac number, because 20001032032129 - 2¹¹ = 20001032030081 is a prime.

It is not a weakly prime, because it can be changed into another prime (20001032032169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000516016064 + 10000516016065.

It is an arithmetic number, because the mean of its divisors is an integer number (10000516016065).

Almost surely, 2^{20001032032129} is an apocalyptic number.

It is an amenable number.

20001032032129 is a deficient number, since it is larger than the sum of its proper divisors (1).

20001032032129 is an equidigital number, since it uses as much as digits as its factorization.

20001032032129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 25.

The spelling of 20001032032129 in words is "twenty trillion, one billion, thirty-two million, thirty-two thousand, one hundred twenty-nine".