3111020203021 has 24 divisors (see below), whose sum is σ = 3382365485664. Its totient is φ = 2859313416960.

The previous prime is 3111020203009. The next prime is 3111020203079. The reversal of 3111020203021 is 1203020201113.

It is not a de Polignac number, because 3111020203021 - 2⁷ = 3111020202893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3111020202986 and 3111020203004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3111020203001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64235811 + ... + 64284223.

It is an arithmetic number, because the mean of its divisors is an integer number (140931895236).

Almost surely, 2^{3111020203021} is an apocalyptic number.

It is an amenable number.

3111020203021 is a deficient number, since it is larger than the sum of its proper divisors (271345282643).

3111020203021 is a wasteful number, since it uses less digits than its factorization.

3111020203021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53661 (or 53644 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 3111020203021 its reverse (1203020201113), we get a palindrome (4314040404134).

The spelling of 3111020203021 in words is "three trillion, one hundred eleven billion, twenty million, two hundred three thousand, twenty-one".