20202011103031 has 4 divisors (see below), whose sum is σ = 20213092844352. Its totient is φ = 20190929361712.

The previous prime is 20202011103019. The next prime is 20202011103041. The reversal of 20202011103031 is 13030111020202.

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 20202011103031 - 2²³ = 20202002714423 is a prime.

It is a super-2 number, since 2×20202011103031² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20202011102996 and 20202011103014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20202011103041) 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, 5540867926 + ... + 5540871571.

It is an arithmetic number, because the mean of its divisors is an integer number (5053273211088).

Almost surely, 2^{20202011103031} is an apocalyptic number.

20202011103031 is a deficient number, since it is larger than the sum of its proper divisors (11081741321).

20202011103031 is a wasteful number, since it uses less digits than its factorization.

20202011103031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11081741320.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 20202011103031 its reverse (13030111020202), we get a palindrome (33232122123233).

The spelling of 20202011103031 in words is "twenty trillion, two hundred two billion, eleven million, one hundred three thousand, thirty-one".