20020200311 has 8 divisors (see below), whose sum is σ = 20367666000. Its totient is φ = 19673006080.

The previous prime is 20020200301. The next prime is 20020200341. The reversal of 20020200311 is 11300202002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20020200311 - 2²² = 20016006007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20020200292 and 20020200301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020200301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83831 + ... + 216951.

It is an arithmetic number, because the mean of its divisors is an integer number (2545958250).

Almost surely, 2^20020200311 is an apocalyptic number.

20020200311 is a deficient number, since it is larger than the sum of its proper divisors (347465689).

20020200311 is a wasteful number, since it uses less digits than its factorization.

20020200311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135729.

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 20020200311 its reverse (11300202002), we get a palindrome (31320402313).

The spelling of 20020200311 in words is "twenty billion, twenty million, two hundred thousand, three hundred eleven".