80281011 has 4 divisors (see below), whose sum is σ = 107041352. Its totient is φ = 53520672.

The previous prime is 80280997. The next prime is 80281027. The reversal of 80281011 is 11018208.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 80281011 - 2²² = 76086707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80281031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13380166 + ... + 13380171.

It is an arithmetic number, because the mean of its divisors is an integer number (26760338).

Almost surely, 2^80281011 is an apocalyptic number.

80281011 is a deficient number, since it is larger than the sum of its proper divisors (26760341).

80281011 is a wasteful number, since it uses less digits than its factorization.

80281011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26760340.

The product of its (nonzero) digits is 128, while the sum is 21.

The square root of 80281011 is about 8959.9671316361. The cubic root of 80281011 is about 431.3908649675.

Adding to 80281011 its reverse (11018208), we get a palindrome (91299219).

The spelling of 80281011 in words is "eighty million, two hundred eighty-one thousand, eleven".