20201110103131 has 4 divisors (see below), whose sum is σ = 20201616728512. Its totient is φ = 20200603477752.

The previous prime is 20201110103099. The next prime is 20201110103149. The reversal of 20201110103131 is 13130101110202.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20201110103131 - 2⁵ = 20201110103099 is a prime.

It is a super-2 number, since 2×20201110103131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20201110103191) 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, 253252875 + ... + 253332628.

It is an arithmetic number, because the mean of its divisors is an integer number (5050404182128).

Almost surely, 2^{20201110103131} is an apocalyptic number.

20201110103131 is a deficient number, since it is larger than the sum of its proper divisors (506625381).

20201110103131 is an equidigital number, since it uses as much as digits as its factorization.

20201110103131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506625380.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 20201110103131 its reverse (13130101110202), we get a palindrome (33331211213333).

The spelling of 20201110103131 in words is "twenty trillion, two hundred one billion, one hundred ten million, one hundred three thousand, one hundred thirty-one".