20302021023 has 4 divisors (see below), whose sum is σ = 27069361368. Its totient is φ = 13534680680.

The previous prime is 20302021007. The next prime is 20302021043. The reversal of 20302021023 is 32012020302.

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 20302021023 - 2⁴ = 20302021007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20302020993 and 20302021011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20302021043) 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, 3383670168 + ... + 3383670173.

It is an arithmetic number, because the mean of its divisors is an integer number (6767340342).

Almost surely, 2^20302021023 is an apocalyptic number.

20302021023 is a deficient number, since it is larger than the sum of its proper divisors (6767340345).

20302021023 is an equidigital number, since it uses as much as digits as its factorization.

20302021023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6767340344.

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 20302021023 its reverse (32012020302), we get a palindrome (52314041325).

The spelling of 20302021023 in words is "twenty billion, three hundred two million, twenty-one thousand, twenty-three".