100333423381 has 2 divisors, whose sum is σ = 100333423382. Its totient is φ = 100333423380.

The previous prime is 100333423357. The next prime is 100333423423. The reversal of 100333423381 is 183324333001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89261122756 + 11072300625 = 298766^2 + 105225^2 .

It is an emirp because it is prime and its reverse (183324333001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100333423381 - 2⁵ = 100333423349 is a prime.

It is a super-2 number, since 2×100333423381² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100333423081) 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, 50166711690 + 50166711691.

It is an arithmetic number, because the mean of its divisors is an integer number (50166711691).

Almost surely, 2^100333423381 is an apocalyptic number.

It is an amenable number.

100333423381 is a deficient number, since it is larger than the sum of its proper divisors (1).

100333423381 is an equidigital number, since it uses as much as digits as its factorization.

100333423381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 31.

Adding to 100333423381 its reverse (183324333001), we get a palindrome (283657756382).

The spelling of 100333423381 in words is "one hundred billion, three hundred thirty-three million, four hundred twenty-three thousand, three hundred eighty-one".