10143121 has 4 divisors (see below), whose sum is σ = 10181952. Its totient is φ = 10104292.

The previous prime is 10143073. The next prime is 10143137. The reversal of 10143121 is 12134101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10143121 - 2²¹ = 8045969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10143151) 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 in 3 ways as a sum of consecutive naturals, for example, 19021 + ... + 19546.

It is an arithmetic number, because the mean of its divisors is an integer number (2545488).

Almost surely, 2^10143121 is an apocalyptic number.

It is an amenable number.

10143121 is a deficient number, since it is larger than the sum of its proper divisors (38831).

10143121 is an equidigital number, since it uses as much as digits as its factorization.

10143121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38830.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 10143121 is about 3184.8266828824. The cubic root of 10143121 is about 216.4664203779.

Adding to 10143121 its reverse (12134101), we get a palindrome (22277222).

The spelling of 10143121 in words is "ten million, one hundred forty-three thousand, one hundred twenty-one".