101444256138 has 16 divisors (see below), whose sum is σ = 202891998816. Its totient is φ = 33814170960.

The previous prime is 101444256131. The next prime is 101444256139. The reversal of 101444256138 is 831652444101.

It is a junction number, because it is equal to n+sod(n) for n = 101444256096 and 101444256105.

It is not an unprimeable number, because it can be changed into a prime (101444256131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 377920 + ... + 587972.

It is an arithmetic number, because the mean of its divisors is an integer number (12680749926).

Almost surely, 2^101444256138 is an apocalyptic number.

101444256138 is an abundant number, since it is smaller than the sum of its proper divisors (101447742678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101444256138 is a wasteful number, since it uses less digits than its factorization.

101444256138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290549.

The product of its (nonzero) digits is 92160, while the sum is 39.

The spelling of 101444256138 in words is "one hundred one billion, four hundred forty-four million, two hundred fifty-six thousand, one hundred thirty-eight".