10011303121 has 4 divisors (see below), whose sum is σ = 10356520500. Its totient is φ = 9666085744.

The previous prime is 10011303119. The next prime is 10011303131. The reversal of 10011303121 is 12130311001.

10011303121 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12130311001 = 8387 ⋅1446323.

It can be written as a sum of positive squares in 2 ways, for example, as 2604979521 + 7406323600 = 51039^2 + 86060^2 .

It is a cyclic number.

It is not a de Polignac number, because 10011303121 - 2¹ = 10011303119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10011303101) 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, 172608646 + ... + 172608703.

It is an arithmetic number, because the mean of its divisors is an integer number (2589130125).

Almost surely, 2^10011303121 is an apocalyptic number.

It is an amenable number.

10011303121 is a deficient number, since it is larger than the sum of its proper divisors (345217379).

10011303121 is an equidigital number, since it uses as much as digits as its factorization.

10011303121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345217378.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 10011303121 its reverse (12130311001), we get a palindrome (22141614122).

The spelling of 10011303121 in words is "ten billion, eleven million, three hundred three thousand, one hundred twenty-one".