20091010011 has 8 divisors (see below), whose sum is σ = 26811251280. Its totient is φ = 13382387712.

The previous prime is 20091010003. The next prime is 20091010087. The reversal of 20091010011 is 11001019002.

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

It is not a de Polignac number, because 20091010011 - 2³ = 20091010003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20091010411) 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, 2900706 + ... + 2907623.

It is an arithmetic number, because the mean of its divisors is an integer number (3351406410).

Almost surely, 2^20091010011 is an apocalyptic number.

20091010011 is a deficient number, since it is larger than the sum of its proper divisors (6720241269).

20091010011 is a wasteful number, since it uses less digits than its factorization.

20091010011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5809485.

The product of its (nonzero) digits is 18, while the sum is 15.

Adding to 20091010011 its reverse (11001019002), we get a palindrome (31092029013).

The spelling of 20091010011 in words is "twenty billion, ninety-one million, ten thousand, eleven".