10231121 has 2 divisors, whose sum is σ = 10231122. Its totient is φ = 10231120.

The previous prime is 10231097. The next prime is 10231153. The reversal of 10231121 is 12113201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5456896 + 4774225 = 2336^2 + 2185^2 .

It is an emirp because it is prime and its reverse (12113201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10231121 - 2⁶ = 10231057 is a prime.

It is not a weakly prime, because it can be changed into another prime (10231421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5115560 + 5115561.

It is an arithmetic number, because the mean of its divisors is an integer number (5115561).

Almost surely, 2^10231121 is an apocalyptic number.

It is an amenable number.

10231121 is a deficient number, since it is larger than the sum of its proper divisors (1).

10231121 is an equidigital number, since it uses as much as digits as its factorization.

10231121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 10231121 is about 3198.6123553816. The cubic root of 10231121 is about 217.0906273396.

Adding to 10231121 its reverse (12113201), we get a palindrome (22344322).

It can be divided in two parts, 10231 and 121, that multiplied together give a triangular number (1237951 = T₁₅₇₃).

The spelling of 10231121 in words is "ten million, two hundred thirty-one thousand, one hundred twenty-one".