2021000523 has 8 divisors (see below), whose sum is σ = 2702434368. Its totient is φ = 1343450184.

The previous prime is 2021000521. The next prime is 2021000533. The reversal of 2021000523 is 3250001202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2021000523 - 2¹ = 2021000521 is a prime.

It is a super-2 number, since 2×2021000523² = 8168886227932547058, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2021000521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 969661 + ... + 971742.

It is an arithmetic number, because the mean of its divisors is an integer number (337804296).

Almost surely, 2^2021000523 is an apocalyptic number.

2021000523 is a deficient number, since it is larger than the sum of its proper divisors (681433845).

2021000523 is a wasteful number, since it uses less digits than its factorization.

2021000523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1941753.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 2021000523 is about 44955.5394028367. The cubic root of 2021000523 is about 1264.3155380041.

Adding to 2021000523 its reverse (3250001202), we get a palindrome (5271001725).

The spelling of 2021000523 in words is "two billion, twenty-one million, five hundred twenty-three", and thus it is an aban number.