29989101105 has 12 divisors (see below), whose sum is σ = 51981108660. Its totient is φ = 15994187232.

The previous prime is 29989101097. The next prime is 29989101119. The reversal of 29989101105 is 50110198992.

It can be written as a sum of positive squares in 2 ways, for example, as 9496892304 + 20492208801 = 97452^2 + 143151^2 .

It is not a de Polignac number, because 29989101105 - 2³ = 29989101097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 666424469 = 29989101105 / (2 + 9 + 9 + 8 + 9 + 1 + 0 + 1 + 1 + 0 + 5).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 333212190 + ... + 333212279.

It is an arithmetic number, because the mean of its divisors is an integer number (4331759055).

Almost surely, 2^29989101105 is an apocalyptic number.

It is an amenable number.

29989101105 is a deficient number, since it is larger than the sum of its proper divisors (21992007555).

29989101105 is a wasteful number, since it uses less digits than its factorization.

29989101105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666424480 (or 666424477 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 45.

The spelling of 29989101105 in words is "twenty-nine billion, nine hundred eighty-nine million, one hundred one thousand, one hundred five".