102110421243 has 8 divisors (see below), whose sum is σ = 143312872000. Its totient is φ = 64490792328.

The previous prime is 102110421223. The next prime is 102110421247. The reversal of 102110421243 is 342124011201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 102110421243 - 2²¹ = 102108324091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102110421247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 895705393 + ... + 895705506.

It is an arithmetic number, because the mean of its divisors is an integer number (17914109000).

Almost surely, 2^102110421243 is an apocalyptic number.

102110421243 is a deficient number, since it is larger than the sum of its proper divisors (41202450757).

102110421243 is a wasteful number, since it uses less digits than its factorization.

102110421243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1791410921.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 102110421243 its reverse (342124011201), we get a palindrome (444234432444).

The spelling of 102110421243 in words is "one hundred two billion, one hundred ten million, four hundred twenty-one thousand, two hundred forty-three".