1101721060 has 48 divisors (see below), whose sum is σ = 2582661312. Its totient is φ = 391305600.

The previous prime is 1101721051. The next prime is 1101721067. The reversal of 1101721060 is 601271011.

It is not an unprimeable number, because it can be changed into a prime (1101721067) 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, 48771 + ... + 67690.

It is an arithmetic number, because the mean of its divisors is an integer number (53805444).

Almost surely, 2^1101721060 is an apocalyptic number.

1101721060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1101721060 is an abundant number, since it is smaller than the sum of its proper divisors (1480940252).

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

1101721060 is a wasteful number, since it uses less digits than its factorization.

1101721060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116524 (or 116522 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 19.

The square root of 1101721060 is about 33192.1837184600. The cubic root of 1101721060 is about 1032.8182034126.

Adding to 1101721060 its reverse (601271011), we get a palindrome (1702992071).

The spelling of 1101721060 in words is "one billion, one hundred one million, seven hundred twenty-one thousand, sixty".