101900444242 has 4 divisors (see below), whose sum is σ = 152850666366. Its totient is φ = 50950222120.

The previous prime is 101900444119. The next prime is 101900444309. The reversal of 101900444242 is 242444009101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 242444009101 = 7 ⋅34634858443.

It can be written as a sum of positive squares in only one way, i.e., 101384291281 + 516152961 = 318409^2 + 22719^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25475111059 + ... + 25475111062.

Almost surely, 2^101900444242 is an apocalyptic number.

101900444242 is a deficient number, since it is larger than the sum of its proper divisors (50950222124).

101900444242 is an equidigital number, since it uses as much as digits as its factorization.

101900444242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50950222123.

The product of its (nonzero) digits is 9216, while the sum is 31.

The spelling of 101900444242 in words is "one hundred one billion, nine hundred million, four hundred forty-four thousand, two hundred forty-two".