102238112647 has 8 divisors (see below), whose sum is σ = 111566769552. Its totient is φ = 92915169600.

The previous prime is 102238112597. The next prime is 102238112657. The reversal of 102238112647 is 746211832201.

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

It is a de Polignac number, because none of the positive numbers 2^k-102238112647 is a prime.

It is a super-2 number, since 2×102238112647² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102238112657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1391004 + ... + 1462657.

It is an arithmetic number, because the mean of its divisors is an integer number (13945846194).

Almost surely, 2^102238112647 is an apocalyptic number.

102238112647 is a deficient number, since it is larger than the sum of its proper divisors (9328656905).

102238112647 is a wasteful number, since it uses less digits than its factorization.

102238112647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2856929.

The product of its (nonzero) digits is 32256, while the sum is 37.

Adding to 102238112647 its reverse (746211832201), we get a palindrome (848449944848).

The spelling of 102238112647 in words is "one hundred two billion, two hundred thirty-eight million, one hundred twelve thousand, six hundred forty-seven".