10312011121 has 4 divisors (see below), whose sum is σ = 10418320612. Its totient is φ = 10205701632.

The previous prime is 10312011109. The next prime is 10312011137. The reversal of 10312011121 is 12111021301.

It is a happy number.

10312011121 is digitally balanced in base 2, 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: 12111021301 = 541 ⋅22386361.

It can be written as a sum of positive squares in 2 ways, for example, as 1383840000 + 8928171121 = 37200^2 + 94489^2 .

It is a cyclic number.

It is not a de Polignac number, because 10312011121 - 2¹⁷ = 10311880049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10312011161) 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 3 ways as a sum of consecutive naturals, for example, 53154600 + ... + 53154793.

It is an arithmetic number, because the mean of its divisors is an integer number (2604580153).

Almost surely, 2^10312011121 is an apocalyptic number.

It is an amenable number.

10312011121 is a deficient number, since it is larger than the sum of its proper divisors (106309491).

10312011121 is an equidigital number, since it uses as much as digits as its factorization.

10312011121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106309490.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 10312011121 its reverse (12111021301), we get a palindrome (22423032422).

The spelling of 10312011121 in words is "ten billion, three hundred twelve million, eleven thousand, one hundred twenty-one".