2021001351 has 4 divisors (see below), whose sum is σ = 2694668472. Its totient is φ = 1347334232.

The previous prime is 2021001349. The next prime is 2021001371. The reversal of 2021001351 is 1531001202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2021001351 - 2¹ = 2021001349 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2021001351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021001371) 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, 336833556 + ... + 336833561.

It is an arithmetic number, because the mean of its divisors is an integer number (673667118).

Almost surely, 2^2021001351 is an apocalyptic number.

2021001351 is a deficient number, since it is larger than the sum of its proper divisors (673667121).

2021001351 is an equidigital number, since it uses as much as digits as its factorization.

2021001351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673667120.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 2021001351 is about 44955.5486119344. The cubic root of 2021001351 is about 1264.3157106666.

Adding to 2021001351 its reverse (1531001202), we get a palindrome (3552002553).

The spelling of 2021001351 in words is "two billion, twenty-one million, one thousand, three hundred fifty-one".