20100312101 has 4 divisors (see below), whose sum is σ = 20103000000. Its totient is φ = 20097624204.

The previous prime is 20100312041. The next prime is 20100312103. The reversal of 20100312101 is 10121300102.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10121300102 = 2 ⋅5060650051.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20100312101 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 (20100312103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1332701 + ... + 1347698.

It is an arithmetic number, because the mean of its divisors is an integer number (5025750000).

Almost surely, 2^20100312101 is an apocalyptic number.

It is an amenable number.

20100312101 is a deficient number, since it is larger than the sum of its proper divisors (2687899).

20100312101 is an equidigital number, since it uses as much as digits as its factorization.

20100312101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2687898.

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

Adding to 20100312101 its reverse (10121300102), we get a palindrome (30221612203).

The spelling of 20100312101 in words is "twenty billion, one hundred million, three hundred twelve thousand, one hundred one".