2021101033 has 4 divisors (see below), whose sum is σ = 2309829760. Its totient is φ = 1732372308.

The previous prime is 2021101009. The next prime is 2021101039. The reversal of 2021101033 is 3301011202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3301011202 = 2 ⋅1650505601.

It is a cyclic number.

It is not a de Polignac number, because 2021101033 - 2¹³ = 2021092841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2021101039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144364353 + ... + 144364366.

It is an arithmetic number, because the mean of its divisors is an integer number (577457440).

Almost surely, 2^2021101033 is an apocalyptic number.

It is an amenable number.

2021101033 is a deficient number, since it is larger than the sum of its proper divisors (288728727).

2021101033 is an equidigital number, since it uses as much as digits as its factorization.

2021101033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288728726.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 2021101033 is about 44956.6572711984. The cubic root of 2021101033 is about 1264.3364969708.

Adding to 2021101033 its reverse (3301011202), we get a palindrome (5322112235).

The spelling of 2021101033 in words is "two billion, twenty-one million, one hundred one thousand, thirty-three".