723047011 has 4 divisors (see below), whose sum is σ = 723736024. Its totient is φ = 722358000.

The previous prime is 723046997. The next prime is 723047047. The reversal of 723047011 is 110740327.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110740327 = 139 ⋅796693.

It is a cyclic number.

It is not a de Polignac number, because 723047011 - 2⁵ = 723046979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (723047911) 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, 342930 + ... + 345031.

It is an arithmetic number, because the mean of its divisors is an integer number (180934006).

Almost surely, 2^723047011 is an apocalyptic number.

723047011 is a deficient number, since it is larger than the sum of its proper divisors (689013).

723047011 is a wasteful number, since it uses less digits than its factorization.

723047011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689012.

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 723047011 is about 26889.5334842388. The cubic root of 723047011 is about 897.5435115711.

Adding to 723047011 its reverse (110740327), we get a palindrome (833787338).

The spelling of 723047011 in words is "seven hundred twenty-three million, forty-seven thousand, eleven".