20111031303122 has 16 divisors (see below), whose sum is σ = 31140586752000. Its totient is φ = 9730854997920.

The previous prime is 20111031303067. The next prime is 20111031303149. The reversal of 20111031303122 is 22130313011102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20111031303094 and 20111031303103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2709122 + ... + 6896477.

It is an arithmetic number, because the mean of its divisors is an integer number (1946286672000).

Almost surely, 2^{20111031303122} is an apocalyptic number.

20111031303122 is a deficient number, since it is larger than the sum of its proper divisors (11029555448878).

20111031303122 is a wasteful number, since it uses less digits than its factorization.

20111031303122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9639401.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 20111031303122 its reverse (22130313011102), we get a palindrome (42241344314224).

The spelling of 20111031303122 in words is "twenty trillion, one hundred eleven billion, thirty-one million, three hundred three thousand, one hundred twenty-two".