10303031001221 has 8 divisors (see below), whose sum is σ = 11967923599104. Its totient is φ = 8686396159920.

The previous prime is 10303031001209. The next prime is 10303031001299. The reversal of 10303031001221 is 12210013030301.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10303031001221 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 10303031001221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10303031001721) 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, 12064438685 + ... + 12064439538.

It is an arithmetic number, because the mean of its divisors is an integer number (1495990449888).

Almost surely, 2^{10303031001221} is an apocalyptic number.

It is an amenable number.

10303031001221 is a deficient number, since it is larger than the sum of its proper divisors (1664892597883).

10303031001221 is an equidigital number, since it uses as much as digits as its factorization.

10303031001221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24128878291.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 10303031001221 its reverse (12210013030301), we get a palindrome (22513044031522).

The spelling of 10303031001221 in words is "ten trillion, three hundred three billion, thirty-one million, one thousand, two hundred twenty-one".