20101311323203 has 8 divisors (see below), whose sum is σ = 22288190201136. Its totient is φ = 17974346935200.

The previous prime is 20101311323201. The next prime is 20101311323237. The reversal of 20101311323203 is 30232311310102.

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 20101311323203 - 2¹ = 20101311323201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20101311323201) 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, 14978621776 + ... + 14978623117.

It is an arithmetic number, because the mean of its divisors is an integer number (2786023775142).

Almost surely, 2^{20101311323203} is an apocalyptic number.

20101311323203 is a deficient number, since it is larger than the sum of its proper divisors (2186878877933).

20101311323203 is a wasteful number, since it uses less digits than its factorization.

20101311323203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29957244965.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 20101311323203 its reverse (30232311310102), we get a palindrome (50333622633305).

The spelling of 20101311323203 in words is "twenty trillion, one hundred one billion, three hundred eleven million, three hundred twenty-three thousand, two hundred three".