80903011 has 16 divisors (see below), whose sum is σ = 96004800. Its totient is φ = 66705408.

The previous prime is 80903003. The next prime is 80903057. The reversal of 80903011 is 11030908.

It is not a de Polignac number, because 80903011 - 2³ = 80903003 is a prime.

It is a super-2 number, since 2×80903011² = 13090594377732242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80903071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71095 + ... + 72223.

It is an arithmetic number, because the mean of its divisors is an integer number (6000300).

Almost surely, 2^80903011 is an apocalyptic number.

80903011 is a deficient number, since it is larger than the sum of its proper divisors (15101789).

80903011 is a wasteful number, since it uses less digits than its factorization.

80903011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1518.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 80903011 is about 8994.6101082815. The cubic root of 80903011 is about 432.5021078673.

Adding to 80903011 its reverse (11030908), we get a palindrome (91933919).

The spelling of 80903011 in words is "eighty million, nine hundred three thousand, eleven".