402052330330109 has 2 divisors, whose sum is σ = 402052330330110. Its totient is φ = 402052330330108.

The previous prime is 402052330329997. The next prime is 402052330330129. The reversal of 402052330330109 is 901033033250204.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 332178145320025 + 69874185010084 = 18225755^2 + 8359078^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402052330330109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402052330330129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201026165165054 + 201026165165055.

It is an arithmetic number, because the mean of its divisors is an integer number (201026165165055).

Almost surely, 2^{402052330330109} is an apocalyptic number.

It is an amenable number.

402052330330109 is a deficient number, since it is larger than the sum of its proper divisors (1).

402052330330109 is an equidigital number, since it uses as much as digits as its factorization.

402052330330109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58320, while the sum is 35.

The spelling of 402052330330109 in words is "four hundred two trillion, fifty-two billion, three hundred thirty million, three hundred thirty thousand, one hundred nine".