102002281272 has 96 divisors (see below), whose sum is σ = 279670060800. Its totient is φ = 33581442048.

The previous prime is 102002281237. The next prime is 102002281273. The reversal of 102002281272 is 272182200201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102002281273) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6098473 + ... + 6115175.

It is an arithmetic number, because the mean of its divisors is an integer number (2913229800).

Almost surely, 2^102002281272 is an apocalyptic number.

102002281272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102002281272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139835030400).

102002281272 is an abundant number, since it is smaller than the sum of its proper divisors (177667779528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102002281272 is a wasteful number, since it uses less digits than its factorization.

102002281272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17757 (or 17750 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

Adding to 102002281272 its reverse (272182200201), we get a palindrome (374184481473).

The spelling of 102002281272 in words is "one hundred two billion, two million, two hundred eighty-one thousand, two hundred seventy-two".