10120644105 has 32 divisors (see below), whose sum is σ = 19023984000. Its totient is φ = 4529518080.

The previous prime is 10120644103. The next prime is 10120644133. The reversal of 10120644105 is 50144602101.

It is a happy number.

It is not a de Polignac number, because 10120644105 - 2¹ = 10120644103 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10120644103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2356980 + ... + 2361269.

It is an arithmetic number, because the mean of its divisors is an integer number (594499500).

Almost surely, 2^10120644105 is an apocalyptic number.

10120644105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10120644105 is a deficient number, since it is larger than the sum of its proper divisors (8903339895).

10120644105 is a wasteful number, since it uses less digits than its factorization.

10120644105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4718281.

The product of its (nonzero) digits is 960, while the sum is 24.

The spelling of 10120644105 in words is "ten billion, one hundred twenty million, six hundred forty-four thousand, one hundred five".