320201001440129 has 2 divisors, whose sum is σ = 320201001440130. Its totient is φ = 320201001440128.

The previous prime is 320201001440123. The next prime is 320201001440141. The reversal of 320201001440129 is 921044100102023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 201601605027904 + 118599396412225 = 14198648^2 + 10890335^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320201001440129 is a prime.

It is a super-2 number, since 2×320201001440129² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (320201001440123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160100500720064 + 160100500720065.

It is an arithmetic number, because the mean of its divisors is an integer number (160100500720065).

Almost surely, 2^{320201001440129} is an apocalyptic number.

It is an amenable number.

320201001440129 is a deficient number, since it is larger than the sum of its proper divisors (1).

320201001440129 is an equidigital number, since it uses as much as digits as its factorization.

320201001440129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 29.

The spelling of 320201001440129 in words is "three hundred twenty trillion, two hundred one billion, one million, four hundred forty thousand, one hundred twenty-nine".