2021300001 has 96 divisors (see below), whose sum is σ = 3579383808. Its totient is φ = 1116011520.

The previous prime is 2021299991. The next prime is 2021300003. The reversal of 2021300001 is 1000031202.

It is a happy number.

It is not a de Polignac number, because 2021300001 - 2¹³ = 2021291809 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (2021300003) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 10472961 + ... + 10473153.

It is an arithmetic number, because the mean of its divisors is an integer number (37285248).

Almost surely, 2^2021300001 is an apocalyptic number.

2021300001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2021300001 is a deficient number, since it is larger than the sum of its proper divisors (1558083807).

2021300001 is a wasteful number, since it uses less digits than its factorization.

2021300001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393 (or 381 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 2021300001 is about 44958.8701036848. The cubic root of 2021300001 is about 1264.3779849594.

Adding to 2021300001 its reverse (1000031202), we get a palindrome (3021331203).

The spelling of 2021300001 in words is "two billion, twenty-one million, three hundred thousand, one".