20211312001 has 8 divisors (see below), whose sum is σ = 20300572800. Its totient is φ = 20122090800.

The previous prime is 20211311987. The next prime is 20211312067. The reversal of 20211312001 is 10021311202.

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 20211312001 - 2¹³ = 20211303809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20211312091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1535235 + ... + 1548343.

It is an arithmetic number, because the mean of its divisors is an integer number (2537571600).

Almost surely, 2^20211312001 is an apocalyptic number.

It is an amenable number.

20211312001 is a deficient number, since it is larger than the sum of its proper divisors (89260799).

20211312001 is a wasteful number, since it uses less digits than its factorization.

20211312001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19799.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 20211312001 its reverse (10021311202), we get a palindrome (30232623203).

The spelling of 20211312001 in words is "twenty billion, two hundred eleven million, three hundred twelve thousand, one".