101120105643 has 16 divisors (see below), whose sum is σ = 135068353056. Its totient is φ = 67292732160.

The previous prime is 101120105633. The next prime is 101120105651. The reversal of 101120105643 is 346501021101.

It is a happy number.

It is not a de Polignac number, because 101120105643 - 2²² = 101115911339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (101120105633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4443871 + ... + 4466567.

It is an arithmetic number, because the mean of its divisors is an integer number (8441772066).

Almost surely, 2^101120105643 is an apocalyptic number.

101120105643 is a deficient number, since it is larger than the sum of its proper divisors (33948247413).

101120105643 is a wasteful number, since it uses less digits than its factorization.

101120105643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25294.

The product of its (nonzero) digits is 720, while the sum is 24.

Adding to 101120105643 its reverse (346501021101), we get a palindrome (447621126744).

The spelling of 101120105643 in words is "one hundred one billion, one hundred twenty million, one hundred five thousand, six hundred forty-three".