100330221973 has 2 divisors, whose sum is σ = 100330221974. Its totient is φ = 100330221972.

The previous prime is 100330221961. The next prime is 100330221997. The reversal of 100330221973 is 379122033001.

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., 59266441809 + 41063780164 = 243447^2 + 202642^2 .

It is a cyclic number.

It is not a de Polignac number, because 100330221973 - 2⁵ = 100330221941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100330221913) 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, 50165110986 + 50165110987.

It is an arithmetic number, because the mean of its divisors is an integer number (50165110987).

Almost surely, 2^100330221973 is an apocalyptic number.

It is an amenable number.

100330221973 is a deficient number, since it is larger than the sum of its proper divisors (1).

100330221973 is an equidigital number, since it uses as much as digits as its factorization.

100330221973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 31.

Adding to 100330221973 its reverse (379122033001), we get a palindrome (479452254974).

The spelling of 100330221973 in words is "one hundred billion, three hundred thirty million, two hundred twenty-one thousand, nine hundred seventy-three".