721111314 has 32 divisors (see below), whose sum is σ = 1798096896. Its totient is φ = 187301520.

The previous prime is 721111297. The next prime is 721111319. The reversal of 721111314 is 413111127.

721111314 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (721111319) 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, 779962 + ... + 780885.

It is an arithmetic number, because the mean of its divisors is an integer number (56190528).

Almost surely, 2^721111314 is an apocalyptic number.

721111314 is an abundant number, since it is smaller than the sum of its proper divisors (1076985582).

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

721111314 is a wasteful number, since it uses less digits than its factorization.

721111314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1560870.

The product of its digits is 168, while the sum is 21.

The square root of 721111314 is about 26853.5158591943. The cubic root of 721111314 is about 896.7418463212.

It can be divided in two parts, 7211113 and 14, that added together give a palindrome (7211127).

The spelling of 721111314 in words is "seven hundred twenty-one million, one hundred eleven thousand, three hundred fourteen".