2023021651 has 16 divisors (see below), whose sum is σ = 2376279040. Its totient is φ = 1686484800.

The previous prime is 2023021613. The next prime is 2023021667. The reversal of 2023021651 is 1561203202.

It is not a de Polignac number, because 2023021651 - 2¹³ = 2023013459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2023021601) 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, 9751 + ... + 64351.

It is an arithmetic number, because the mean of its divisors is an integer number (148517440).

Almost surely, 2^2023021651 is an apocalyptic number.

2023021651 is a deficient number, since it is larger than the sum of its proper divisors (353257389).

2023021651 is an equidigital number, since it uses as much as digits as its factorization.

2023021651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54754.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 2023021651 is about 44978.0129730072. The cubic root of 2023021651 is about 1264.7368626803.

Adding to 2023021651 its reverse (1561203202), we get a palindrome (3584224853).

The spelling of 2023021651 in words is "two billion, twenty-three million, twenty-one thousand, six hundred fifty-one".