723534233321 has 16 divisors (see below), whose sum is σ = 737211106944. Its totient is φ = 709988530944.

The previous prime is 723534233281. The next prime is 723534233333. The reversal of 723534233321 is 123332435327.

It is a cyclic number.

It is not a de Polignac number, because 723534233321 - 2²² = 723530039017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (723534233021) 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, 87835415 + ... + 87843651.

It is an arithmetic number, because the mean of its divisors is an integer number (46075694184).

Almost surely, 2^723534233321 is an apocalyptic number.

It is an amenable number.

723534233321 is a deficient number, since it is larger than the sum of its proper divisors (13676873623).

723534233321 is a wasteful number, since it uses less digits than its factorization.

723534233321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16000.

The product of its digits is 272160, while the sum is 38.

Adding to 723534233321 its reverse (123332435327), we get a palindrome (846866668648).

The spelling of 723534233321 in words is "seven hundred twenty-three billion, five hundred thirty-four million, two hundred thirty-three thousand, three hundred twenty-one".