102121234240223 has 16 divisors (see below), whose sum is σ = 117423315162240. Its totient is φ = 87835118061600.

The previous prime is 102121234240177. The next prime is 102121234240231. The reversal of 102121234240223 is 322042432121201.

It is a cyclic number.

It is not a de Polignac number, because 102121234240223 - 2³⁰ = 102120160498399 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 (102121234240273) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 322575173 + ... + 322891598.

It is an arithmetic number, because the mean of its divisors is an integer number (7338957197640).

Almost surely, 2^{102121234240223} is an apocalyptic number.

102121234240223 is a deficient number, since it is larger than the sum of its proper divisors (15302080922017).

102121234240223 is a wasteful number, since it uses less digits than its factorization.

102121234240223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645467558.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 102121234240223 its reverse (322042432121201), we get a palindrome (424163666361424).

The spelling of 102121234240223 in words is "one hundred two trillion, one hundred twenty-one billion, two hundred thirty-four million, two hundred forty thousand, two hundred twenty-three".