100430330440021 has 2 divisors, whose sum is σ = 100430330440022. Its totient is φ = 100430330440020.

The previous prime is 100430330439991. The next prime is 100430330440049. The reversal of 100430330440021 is 120044033034001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63224539320996 + 37205791119025 = 7951386^2 + 6099655^2 .

It is a cyclic number.

It is not a de Polignac number, because 100430330440021 - 2¹³ = 100430330431829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100430330447021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50215165220010 + 50215165220011.

It is an arithmetic number, because the mean of its divisors is an integer number (50215165220011).

Almost surely, 2^{100430330440021} is an apocalyptic number.

It is an amenable number.

100430330440021 is a deficient number, since it is larger than the sum of its proper divisors (1).

100430330440021 is an equidigital number, since it uses as much as digits as its factorization.

100430330440021 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 25.

Adding to 100430330440021 its reverse (120044033034001), we get a palindrome (220474363474022).

The spelling of 100430330440021 in words is "one hundred trillion, four hundred thirty billion, three hundred thirty million, four hundred forty thousand, twenty-one".