723880941331 has 4 divisors (see below), whose sum is σ = 766462173192. Its totient is φ = 681299709472.

The previous prime is 723880941313. The next prime is 723880941341. The reversal of 723880941331 is 133149088327.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133149088327 = 8243 ⋅16152989.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-723880941331 is a prime.

It is a super-2 number, since 2×723880941331² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (723880941341) 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, 21290615905 + ... + 21290615938.

It is an arithmetic number, because the mean of its divisors is an integer number (191615543298).

Almost surely, 2^723880941331 is an apocalyptic number.

723880941331 is a deficient number, since it is larger than the sum of its proper divisors (42581231861).

723880941331 is a wasteful number, since it uses less digits than its factorization.

723880941331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42581231860.

The product of its (nonzero) digits is 870912, while the sum is 49.

The spelling of 723880941331 in words is "seven hundred twenty-three billion, eight hundred eighty million, nine hundred forty-one thousand, three hundred thirty-one".