100238219449 has 2 divisors, whose sum is σ = 100238219450. Its totient is φ = 100238219448.

The previous prime is 100238219443. The next prime is 100238219531. The reversal of 100238219449 is 944912832001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52329765049 + 47908454400 = 228757^2 + 218880^2 .

It is a cyclic number.

It is not a de Polignac number, because 100238219449 - 2³ = 100238219441 is a prime.

It is not a weakly prime, because it can be changed into another prime (100238219441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50119109724 + 50119109725.

It is an arithmetic number, because the mean of its divisors is an integer number (50119109725).

Almost surely, 2^100238219449 is an apocalyptic number.

It is an amenable number.

100238219449 is a deficient number, since it is larger than the sum of its proper divisors (1).

100238219449 is an equidigital number, since it uses as much as digits as its factorization.

100238219449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 43.

The spelling of 100238219449 in words is "one hundred billion, two hundred thirty-eight million, two hundred nineteen thousand, four hundred forty-nine".