201081976623329 has 2 divisors, whose sum is σ = 201081976623330. Its totient is φ = 201081976623328.

The previous prime is 201081976623301. The next prime is 201081976623361. The reversal of 201081976623329 is 923326679180102.

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., 176597521000000 + 24484455623329 = 13289000^2 + 4948177^2 .

It is a cyclic number.

It is not a de Polignac number, because 201081976623329 - 2²⁴ = 201081959846113 is a prime.

It is a super-2 number, since 2×201081976623329² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (201081976623529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100540988311664 + 100540988311665.

It is an arithmetic number, because the mean of its divisors is an integer number (100540988311665).

Almost surely, 2^{201081976623329} is an apocalyptic number.

It is an amenable number.

201081976623329 is a deficient number, since it is larger than the sum of its proper divisors (1).

201081976623329 is an equidigital number, since it uses as much as digits as its factorization.

201081976623329 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11757312, while the sum is 59.

The spelling of 201081976623329 in words is "two hundred one trillion, eighty-one billion, nine hundred seventy-six million, six hundred twenty-three thousand, three hundred twenty-nine".