20102311001 has 4 divisors (see below), whose sum is σ = 20103306192. Its totient is φ = 20101315812.

The previous prime is 20102310997. The next prime is 20102311003. The reversal of 20102311001 is 10011320102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20102311001 - 2² = 20102310997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20102311003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 466655 + ... + 507908.

It is an arithmetic number, because the mean of its divisors is an integer number (5025826548).

Almost surely, 2^20102311001 is an apocalyptic number.

It is an amenable number.

20102311001 is a deficient number, since it is larger than the sum of its proper divisors (995191).

20102311001 is an equidigital number, since it uses as much as digits as its factorization.

20102311001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995190.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 20102311001 its reverse (10011320102), we get a palindrome (30113631103).

The spelling of 20102311001 in words is "twenty billion, one hundred two million, three hundred eleven thousand, one".