20200311221302 has 4 divisors (see below), whose sum is σ = 30300466831956. Its totient is φ = 10100155610650.

The previous prime is 20200311221261. The next prime is 20200311221357. The reversal of 20200311221302 is 20312211300202.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20200311221302.

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, 5050077805324 + ... + 5050077805327.

It is an arithmetic number, because the mean of its divisors is an integer number (7575116707989).

Almost surely, 2^{20200311221302} is an apocalyptic number.

20200311221302 is a deficient number, since it is larger than the sum of its proper divisors (10100155610654).

20200311221302 is a wasteful number, since it uses less digits than its factorization.

20200311221302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10100155610653.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20200311221302 its reverse (20312211300202), we get a palindrome (40512522521504).

The spelling of 20200311221302 in words is "twenty trillion, two hundred billion, three hundred eleven million, two hundred twenty-one thousand, three hundred two".