2021013001 has 16 divisors (see below), whose sum is σ = 2374804224. Its totient is φ = 1683595584.

The previous prime is 2021012999. The next prime is 2021013077. The reversal of 2021013001 is 1003101202.

It is a cyclic number.

It is not a de Polignac number, because 2021013001 - 2¹ = 2021012999 is a prime.

It is a super-2 number, since 2×2021013001² = 8168987100422052002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021023001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 258516 + ... + 266218.

It is an arithmetic number, because the mean of its divisors is an integer number (148425264).

Almost surely, 2^2021013001 is an apocalyptic number.

It is an amenable number.

2021013001 is a deficient number, since it is larger than the sum of its proper divisors (353791223).

2021013001 is a wasteful number, since it uses less digits than its factorization.

2021013001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8760.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 2021013001 is about 44955.6781841849. The cubic root of 2021013001 is about 1264.3181400316.

Adding to 2021013001 its reverse (1003101202), we get a palindrome (3024114203).

The spelling of 2021013001 in words is "two billion, twenty-one million, thirteen thousand, one".