20201211311102 has 4 divisors (see below), whose sum is σ = 30301816966656. Its totient is φ = 10100605655550.

The previous prime is 20201211311063. The next prime is 20201211311117. The reversal of 20201211311102 is 20111311210202.

It is a happy number.

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, 5050302827774 + ... + 5050302827777.

It is an arithmetic number, because the mean of its divisors is an integer number (7575454241664).

Almost surely, 2^{20201211311102} is an apocalyptic number.

20201211311102 is a deficient number, since it is larger than the sum of its proper divisors (10100605655554).

20201211311102 is a wasteful number, since it uses less digits than its factorization.

20201211311102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10100605655553.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 20201211311102 its reverse (20111311210202), we get a palindrome (40312522521304).

The spelling of 20201211311102 in words is "twenty trillion, two hundred one billion, two hundred eleven million, three hundred eleven thousand, one hundred two".