4011020332021 has 4 divisors (see below), whose sum is σ = 4017784279212. Its totient is φ = 4004256384832.

The previous prime is 4011020331979. The next prime is 4011020332079. The reversal of 4011020332021 is 1202330201104.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1008126443025 + 3002893888996 = 1004055^2 + 1732886^2 .

It is a cyclic number.

It is not a de Polignac number, because 4011020332021 - 2²⁷ = 4010886114293 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4011020332021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4011020332091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3381972706 + ... + 3381973891.

It is an arithmetic number, because the mean of its divisors is an integer number (1004446069803).

Almost surely, 2^{4011020332021} is an apocalyptic number.

It is an amenable number.

4011020332021 is a deficient number, since it is larger than the sum of its proper divisors (6763947191).

4011020332021 is an equidigital number, since it uses as much as digits as its factorization.

4011020332021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6763947190.

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

Adding to 4011020332021 its reverse (1202330201104), we get a palindrome (5213350533125).

The spelling of 4011020332021 in words is "four trillion, eleven billion, twenty million, three hundred thirty-two thousand, twenty-one".