20119191001 has 8 divisors (see below), whose sum is σ = 24762081344. Its totient is φ = 15918480720.

The previous prime is 20119190963. The next prime is 20119191007. The reversal of 20119191001 is 10019191102.

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 20119191001 - 2¹¹ = 20119188953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20119191007) 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, 110544915 + ... + 110545096.

It is an arithmetic number, because the mean of its divisors is an integer number (3095260168).

Almost surely, 2^20119191001 is an apocalyptic number.

It is an amenable number.

20119191001 is a deficient number, since it is larger than the sum of its proper divisors (4642890343).

20119191001 is a wasteful number, since it uses less digits than its factorization.

20119191001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221090031.

The product of its (nonzero) digits is 162, while the sum is 25.

The spelling of 20119191001 in words is "twenty billion, one hundred nineteen million, one hundred ninety-one thousand, one".