21250314001 has 32 divisors (see below), whose sum is σ = 25725090560. Its totient is φ = 17147759616.

The previous prime is 21250313941. The next prime is 21250314011. The reversal of 21250314001 is 10041305212.

It is not a de Polignac number, because 21250314001 - 2⁷ = 21250313873 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21250314001.

It is not an unprimeable number, because it can be changed into a prime (21250314011) 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 in 31 ways as a sum of consecutive naturals, for example, 19023895 + ... + 19025011.

It is an arithmetic number, because the mean of its divisors is an integer number (803909080).

Almost surely, 2^21250314001 is an apocalyptic number.

It is an amenable number.

21250314001 is a deficient number, since it is larger than the sum of its proper divisors (4474776559).

21250314001 is a wasteful number, since it uses less digits than its factorization.

21250314001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1913.

The product of its (nonzero) digits is 240, while the sum is 19.

Adding to 21250314001 its reverse (10041305212), we get a palindrome (31291619213).

The spelling of 21250314001 in words is "twenty-one billion, two hundred fifty million, three hundred fourteen thousand, one".