100420446397 has 2 divisors, whose sum is σ = 100420446398. Its totient is φ = 100420446396.

The previous prime is 100420446283. The next prime is 100420446433. The reversal of 100420446397 is 793644024001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67610920441 + 32809525956 = 260021^2 + 181134^2 .

It is a cyclic number.

It is not a de Polignac number, because 100420446397 - 2¹¹ = 100420444349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100420446097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50210223198 + 50210223199.

It is an arithmetic number, because the mean of its divisors is an integer number (50210223199).

Almost surely, 2^100420446397 is an apocalyptic number.

It is an amenable number.

100420446397 is a deficient number, since it is larger than the sum of its proper divisors (1).

100420446397 is an equidigital number, since it uses as much as digits as its factorization.

100420446397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 40.

The spelling of 100420446397 in words is "one hundred billion, four hundred twenty million, four hundred forty-six thousand, three hundred ninety-seven".