920091109091 has 8 divisors (see below), whose sum is σ = 1147126577664. Its totient is φ = 716954110920.

The previous prime is 920091109087. The next prime is 920091109097. The reversal of 920091109091 is 190901190029.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 920091109091 - 2² = 920091109087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (920091109097) 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, 5974617515 + ... + 5974617668.

It is an arithmetic number, because the mean of its divisors is an integer number (143390822208).

Almost surely, 2^920091109091 is an apocalyptic number.

920091109091 is a deficient number, since it is larger than the sum of its proper divisors (227035468573).

920091109091 is a wasteful number, since it uses less digits than its factorization.

920091109091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11949235201.

The product of its (nonzero) digits is 13122, while the sum is 41.

The spelling of 920091109091 in words is "nine hundred twenty billion, ninety-one million, one hundred nine thousand, ninety-one".