20251004201 has 2 divisors, whose sum is σ = 20251004202. Its totient is φ = 20251004200.

The previous prime is 20251004177. The next prime is 20251004203. The reversal of 20251004201 is 10240015202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13467834601 + 6783169600 = 116051^2 + 82360^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20251004201 is a prime.

It is a super-2 number, since 2×20251004201² (a number of 21 digits) contains 22 as substring.

Together with 20251004203, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20251004201.

It is not a weakly prime, because it can be changed into another prime (20251004203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10125502100 + 10125502101.

It is an arithmetic number, because the mean of its divisors is an integer number (10125502101).

Almost surely, 2^20251004201 is an apocalyptic number.

It is an amenable number.

20251004201 is a deficient number, since it is larger than the sum of its proper divisors (1).

20251004201 is an equidigital number, since it uses as much as digits as its factorization.

20251004201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 160, while the sum is 17.

Adding to 20251004201 its reverse (10240015202), we get a palindrome (30491019403).

The spelling of 20251004201 in words is "twenty billion, two hundred fifty-one million, four thousand, two hundred one".