102812071280 has 40 divisors (see below), whose sum is σ = 239053961472. Its totient is φ = 41122093824.

The previous prime is 102812071279. The next prime is 102812071289. The reversal of 102812071280 is 82170218201.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102812071289) 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, 1525169 + ... + 1591151.

Almost surely, 2^102812071280 is an apocalyptic number.

102812071280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102812071280 is an abundant number, since it is smaller than the sum of its proper divisors (136241890192).

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

102812071280 is a wasteful number, since it uses less digits than its factorization.

102812071280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85473 (or 85467 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 32.

Adding to 102812071280 its reverse (82170218201), we get a palindrome (184982289481).

The spelling of 102812071280 in words is "one hundred two billion, eight hundred twelve million, seventy-one thousand, two hundred eighty".