10143223121 has 4 divisors (see below), whose sum is σ = 10203961152. Its totient is φ = 10082485092.

The previous prime is 10143223117. The next prime is 10143223133. The reversal of 10143223121 is 12132234101.

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 10143223121 - 2² = 10143223117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10143223093 and 10143223102.

It is not an unprimeable number, because it can be changed into a prime (10143223141) 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, 30368765 + ... + 30369098.

It is an arithmetic number, because the mean of its divisors is an integer number (2550990288).

Almost surely, 2^10143223121 is an apocalyptic number.

It is an amenable number.

10143223121 is a deficient number, since it is larger than the sum of its proper divisors (60738031).

10143223121 is an equidigital number, since it uses as much as digits as its factorization.

10143223121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60738030.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 10143223121 its reverse (12132234101), we get a palindrome (22275457222).

The spelling of 10143223121 in words is "ten billion, one hundred forty-three million, two hundred twenty-three thousand, one hundred twenty-one".