2021032001 has 4 divisors (see below), whose sum is σ = 2022280404. Its totient is φ = 2019783600.

The previous prime is 2021031997. The next prime is 2021032003. The reversal of 2021032001 is 1002301202.

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 1759886401 + 261145600 = 41951^2 + 16160^2 .

It is a cyclic number.

It is not a de Polignac number, because 2021032001 - 2² = 2021031997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021032003) 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, 621770 + ... + 625011.

It is an arithmetic number, because the mean of its divisors is an integer number (505570101).

Almost surely, 2^2021032001 is an apocalyptic number.

It is an amenable number.

2021032001 is a deficient number, since it is larger than the sum of its proper divisors (1248403).

2021032001 is a wasteful number, since it uses less digits than its factorization.

2021032001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1248402.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 2021032001 is about 44955.8895029339. The cubic root of 2021032001 is about 1264.3221020661.

Adding to 2021032001 its reverse (1002301202), we get a palindrome (3023333203).

The spelling of 2021032001 in words is "two billion, twenty-one million, thirty-two thousand, one".