20101213103 has 8 divisors (see below), whose sum is σ = 20342599200. Its totient is φ = 19860172288.

The previous prime is 20101213081. The next prime is 20101213141. The reversal of 20101213103 is 30131210102.

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 20101213103 - 2⁸ = 20101212847 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 (20101213403) 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 7 ways as a sum of consecutive naturals, for example, 31775 + ... + 203007.

It is an arithmetic number, because the mean of its divisors is an integer number (2542824900).

Almost surely, 2^20101213103 is an apocalyptic number.

20101213103 is a deficient number, since it is larger than the sum of its proper divisors (241386097).

20101213103 is a wasteful number, since it uses less digits than its factorization.

20101213103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172641.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 20101213103 its reverse (30131210102), we get a palindrome (50232423205).

The spelling of 20101213103 in words is "twenty billion, one hundred one million, two hundred thirteen thousand, one hundred three".