102443313123 has 6 divisors (see below), whose sum is σ = 147973674524. Its totient is φ = 68295542076.

The previous prime is 102443313107. The next prime is 102443313149. The reversal of 102443313123 is 321313344201.

It is a happy number.

102443313123 is a `hidden beast` number, since 10 + 2 + 4 + 4 + 331 + 312 + 3 = 666.

It is not a de Polignac number, because 102443313123 - 2⁴ = 102443313107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102443313223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5691295165 + ... + 5691295182.

Almost surely, 2^102443313123 is an apocalyptic number.

102443313123 is a deficient number, since it is larger than the sum of its proper divisors (45530361401).

102443313123 is a wasteful number, since it uses less digits than its factorization.

102443313123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11382590353 (or 11382590350 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 102443313123 its reverse (321313344201), we get a palindrome (423756657324).

The spelling of 102443313123 in words is "one hundred two billion, four hundred forty-three million, three hundred thirteen thousand, one hundred twenty-three".