2020402111 has 32 divisors (see below), whose sum is σ = 2639564928. Its totient is φ = 1500733440.

The previous prime is 2020402103. The next prime is 2020402117. The reversal of 2020402111 is 1112040202.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2020402111 - 2³ = 2020402103 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 2020402091 and 2020402100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020402117) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 711751 + ... + 714583.

It is an arithmetic number, because the mean of its divisors is an integer number (82486404).

Almost surely, 2^2020402111 is an apocalyptic number.

2020402111 is a deficient number, since it is larger than the sum of its proper divisors (619162817).

2020402111 is a wasteful number, since it uses less digits than its factorization.

2020402111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3331.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2020402111 is about 44948.8833120468. The cubic root of 2020402111 is about 1264.1907390465.

Adding to 2020402111 its reverse (1112040202), we get a palindrome (3132442313).

The spelling of 2020402111 in words is "two billion, twenty million, four hundred two thousand, one hundred eleven".