10211420321 has 8 divisors (see below), whose sum is σ = 10528221480. Its totient is φ = 9896767488.

The previous prime is 10211420299. The next prime is 10211420333. The reversal of 10211420321 is 12302411201.

It can be written as a sum of positive squares in 4 ways, for example, as 4937029696 + 5274390625 = 70264^2 + 72625^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10211420321 - 2²² = 10207226017 is a prime.

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 10211420321.

It is not an unprimeable number, because it can be changed into a prime (10211420341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 527426 + ... + 546443.

It is an arithmetic number, because the mean of its divisors is an integer number (1316027685).

Almost surely, 2^10211420321 is an apocalyptic number.

It is an amenable number.

10211420321 is a deficient number, since it is larger than the sum of its proper divisors (316801159).

10211420321 is a wasteful number, since it uses less digits than its factorization.

10211420321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074163.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 10211420321 its reverse (12302411201), we get a palindrome (22513831522).

The spelling of 10211420321 in words is "ten billion, two hundred eleven million, four hundred twenty thousand, three hundred twenty-one".