20310253001 has 4 divisors (see below), whose sum is σ = 20383575492. Its totient is φ = 20236930512.

The previous prime is 20310252983. The next prime is 20310253049. The reversal of 20310253001 is 10035201302.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9634404025 + 10675848976 = 98155^2 + 103324^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20310253001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20310250001) 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, 36660830 + ... + 36661383.

It is an arithmetic number, because the mean of its divisors is an integer number (5095893873).

Almost surely, 2^20310253001 is an apocalyptic number.

It is an amenable number.

20310253001 is a deficient number, since it is larger than the sum of its proper divisors (73322491).

20310253001 is an equidigital number, since it uses as much as digits as its factorization.

20310253001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73322490.

The product of its (nonzero) digits is 180, while the sum is 17.

Adding to 20310253001 its reverse (10035201302), we get a palindrome (30345454303).

The spelling of 20310253001 in words is "twenty billion, three hundred ten million, two hundred fifty-three thousand, one".