20111119391 has 8 divisors (see below), whose sum is σ = 23229956304. Its totient is φ = 17207374720.

The previous prime is 20111119367. The next prime is 20111119403. The reversal of 20111119391 is 19391111102.

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 20111119391 - 2²⁶ = 20044010527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20111119321) 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, 53772860 + ... + 53773233.

It is an arithmetic number, because the mean of its divisors is an integer number (2903744538).

Almost surely, 2^20111119391 is an apocalyptic number.

20111119391 is a deficient number, since it is larger than the sum of its proper divisors (3118836913).

20111119391 is a wasteful number, since it uses less digits than its factorization.

20111119391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107546121.

The product of its (nonzero) digits is 486, while the sum is 29.

The spelling of 20111119391 in words is "twenty billion, one hundred eleven million, one hundred nineteen thousand, three hundred ninety-one".