1080721110 has 64 divisors (see below), whose sum is σ = 3138642432. Its totient is φ = 232490496.

The previous prime is 1080721073. The next prime is 1080721129. The reversal of 1080721110 is 111270801.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 147792 + ... + 154931.

It is an arithmetic number, because the mean of its divisors is an integer number (49041288).

Almost surely, 2^1080721110 is an apocalyptic number.

1080721110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1080721110 is an abundant number, since it is smaller than the sum of its proper divisors (2057921322).

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

1080721110 is a wasteful number, since it uses less digits than its factorization.

1080721110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302757.

The product of its (nonzero) digits is 112, while the sum is 21.

The square root of 1080721110 is about 32874.3229588078. The cubic root of 1080721110 is about 1026.2138654905.

Adding to 1080721110 its reverse (111270801), we get a palindrome (1191991911).

The spelling of 1080721110 in words is "one billion, eighty million, seven hundred twenty-one thousand, one hundred ten".