20101012001 has 8 divisors (see below), whose sum is σ = 22977018624. Its totient is φ = 17226113760.

The previous prime is 20101011991. The next prime is 20101012003. The reversal of 20101012001 is 10021010102.

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 20101012001 - 2¹⁴ = 20100995617 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20101012001.

It is not an unprimeable number, because it can be changed into a prime (20101012003) 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, 237860 + ... + 311093.

It is an arithmetic number, because the mean of its divisors is an integer number (2872127328).

Almost surely, 2^20101012001 is an apocalyptic number.

It is an amenable number.

20101012001 is a deficient number, since it is larger than the sum of its proper divisors (2876006623).

20101012001 is an equidigital number, since it uses as much as digits as its factorization.

20101012001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554191.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 20101012001 its reverse (10021010102), we get a palindrome (30122022103).

It can be divided in two parts, 2010101 and 2001, that added together give a palindrome (2012102).

The spelling of 20101012001 in words is "twenty billion, one hundred one million, twelve thousand, one".