281118826120 has 32 divisors (see below), whose sum is σ = 690018937920. Its totient is φ = 102225027520.

The previous prime is 281118825997. The next prime is 281118826139. The reversal of 281118826120 is 21628811182.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 319452772 + ... + 319453651.

It is an arithmetic number, because the mean of its divisors is an integer number (21563091810).

Almost surely, 2^281118826120 is an apocalyptic number.

281118826120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

281118826120 is an abundant number, since it is smaller than the sum of its proper divisors (408900111800).

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

281118826120 is a wasteful number, since it uses less digits than its factorization.

281118826120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638906445 (or 638906441 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 40.

The spelling of 281118826120 in words is "two hundred eighty-one billion, one hundred eighteen million, eight hundred twenty-six thousand, one hundred twenty".