4011233021 has 2 divisors, whose sum is σ = 4011233022. Its totient is φ = 4011233020.

The previous prime is 4011232993. The next prime is 4011233053. The reversal of 4011233021 is 1203321104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3995630521 + 15602500 = 63211^2 + 3950^2 .

It is a cyclic number.

It is not a de Polignac number, because 4011233021 - 2¹⁴ = 4011216637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4011233071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2005616510 + 2005616511.

It is an arithmetic number, because the mean of its divisors is an integer number (2005616511).

Almost surely, 2^4011233021 is an apocalyptic number.

It is an amenable number.

4011233021 is a deficient number, since it is larger than the sum of its proper divisors (1).

4011233021 is an equidigital number, since it uses as much as digits as its factorization.

4011233021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 4011233021 is about 63334.2957725118. The cubic root of 4011233021 is about 1588.8856056117.

Adding to 4011233021 its reverse (1203321104), we get a palindrome (5214554125).

The spelling of 4011233021 in words is "four billion, eleven million, two hundred thirty-three thousand, twenty-one".