102121340400223 has 4 divisors (see below), whose sum is σ = 102121824899160. Its totient is φ = 102120855901288.

The previous prime is 102121340400197. The next prime is 102121340400239. The reversal of 102121340400223 is 322004043121201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102121340400223 - 2⁹ = 102121340399711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102121340400293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 241933165 + ... + 242354902.

It is an arithmetic number, because the mean of its divisors is an integer number (25530456224790).

Almost surely, 2^{102121340400223} is an apocalyptic number.

102121340400223 is a deficient number, since it is larger than the sum of its proper divisors (484498937).

102121340400223 is an equidigital number, since it uses as much as digits as its factorization.

102121340400223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484498936.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 102121340400223 its reverse (322004043121201), we get a palindrome (424125383521424).

The spelling of 102121340400223 in words is "one hundred two trillion, one hundred twenty-one billion, three hundred forty million, four hundred thousand, two hundred twenty-three".