20111119907 has 4 divisors (see below), whose sum is σ = 20111873616. Its totient is φ = 20110366200.

The previous prime is 20111119843. The next prime is 20111119949. The reversal of 20111119907 is 70991111102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20111119907 - 2⁶ = 20111119843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20111113907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335303 + ... + 390704.

It is an arithmetic number, because the mean of its divisors is an integer number (5027968404).

Almost surely, 2^20111119907 is an apocalyptic number.

20111119907 is a deficient number, since it is larger than the sum of its proper divisors (753709).

20111119907 is an equidigital number, since it uses as much as digits as its factorization.

20111119907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753708.

The product of its (nonzero) digits is 1134, while the sum is 32.

The spelling of 20111119907 in words is "twenty billion, one hundred eleven million, one hundred nineteen thousand, nine hundred seven".