20311105622 has 4 divisors (see below), whose sum is σ = 30466658436. Its totient is φ = 10155552810.

The previous prime is 20311105603. The next prime is 20311105651. The reversal of 20311105622 is 22650111302.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5077776404 + ... + 5077776407.

It is an arithmetic number, because the mean of its divisors is an integer number (7616664609).

Almost surely, 2^20311105622 is an apocalyptic number.

20311105622 is a deficient number, since it is larger than the sum of its proper divisors (10155552814).

20311105622 is a wasteful number, since it uses less digits than its factorization.

20311105622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10155552813.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 20311105622 its reverse (22650111302), we get a palindrome (42961216924).

The spelling of 20311105622 in words is "twenty billion, three hundred eleven million, one hundred five thousand, six hundred twenty-two".