20312100101 has 8 divisors (see below), whose sum is σ = 21204638784. Its totient is φ = 19420345120.

The previous prime is 20312100073. The next prime is 20312100139. The reversal of 20312100101 is 10100121302.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20312100101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20312100181) 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, 142640 + ... + 246921.

It is an arithmetic number, because the mean of its divisors is an integer number (2650579848).

Almost surely, 2^20312100101 is an apocalyptic number.

It is an amenable number.

20312100101 is a deficient number, since it is larger than the sum of its proper divisors (892538683).

20312100101 is a wasteful number, since it uses less digits than its factorization.

20312100101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391851.

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

Adding to 20312100101 its reverse (10100121302), we get a palindrome (30412221403).

The spelling of 20312100101 in words is "twenty billion, three hundred twelve million, one hundred thousand, one hundred one".