20100011001 has 16 divisors (see below), whose sum is σ = 31016294400. Its totient is φ = 11340330768.

The previous prime is 20100010993. The next prime is 20100011003. The reversal of 20100011001 is 10011000102.

It is not a de Polignac number, because 20100011001 - 2³ = 20100010993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20100011003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6056211 + ... + 6059528.

It is an arithmetic number, because the mean of its divisors is an integer number (1938518400).

Almost surely, 2^20100011001 is an apocalyptic number.

20100011001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20100011001 is a deficient number, since it is larger than the sum of its proper divisors (10916283399).

20100011001 is a wasteful number, since it uses less digits than its factorization.

20100011001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12115828.

The product of its (nonzero) digits is 2, while the sum is 6.

Adding to 20100011001 its reverse (10011000102), we get a palindrome (30111011103).

The spelling of 20100011001 in words is "twenty billion, one hundred million, eleven thousand, one".