20515023301 has 2 divisors, whose sum is σ = 20515023302. Its totient is φ = 20515023300.

The previous prime is 20515023257. The next prime is 20515023323. The reversal of 20515023301 is 10332051502.

It is an a-pointer prime, because the next prime (20515023323) can be obtained adding 20515023301 to its sum of digits (22).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17829192676 + 2685830625 = 133526^2 + 51825^2 .

It is a cyclic number.

It is not a de Polignac number, because 20515023301 - 2¹³ = 20515015109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20515023391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10257511650 + 10257511651.

It is an arithmetic number, because the mean of its divisors is an integer number (10257511651).

Almost surely, 2^20515023301 is an apocalyptic number.

It is an amenable number.

20515023301 is a deficient number, since it is larger than the sum of its proper divisors (1).

20515023301 is an equidigital number, since it uses as much as digits as its factorization.

20515023301 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 22.

Adding to 20515023301 its reverse (10332051502), we get a palindrome (30847074803).

The spelling of 20515023301 in words is "twenty billion, five hundred fifteen million, twenty-three thousand, three hundred one".