29091991101 has 8 divisors (see below), whose sum is σ = 38792405184. Its totient is φ = 19393118880.

The previous prime is 29091991091. The next prime is 29091991153. The reversal of 29091991101 is 10119919092.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-29091991101 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29091990101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 340696 + ... + 417441.

It is an arithmetic number, because the mean of its divisors is an integer number (4849050648).

Almost surely, 2^29091991101 is an apocalyptic number.

It is an amenable number.

29091991101 is a deficient number, since it is larger than the sum of its proper divisors (9700414083).

29091991101 is a wasteful number, since it uses less digits than its factorization.

29091991101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770931.

The product of its (nonzero) digits is 13122, while the sum is 42.

The spelling of 29091991101 in words is "twenty-nine billion, ninety-one million, nine hundred ninety-one thousand, one hundred one".