723313023133 has 2 divisors, whose sum is σ = 723313023134. Its totient is φ = 723313023132.

The previous prime is 723313023119. The next prime is 723313023161. The reversal of 723313023133 is 331320313327.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 391742047449 + 331570975684 = 625893^2 + 575822^2 .

It is an emirp because it is prime and its reverse (331320313327) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-723313023133 is a prime.

It is a super-3 number, since 3×723313023133³ (a number of 37 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 723313023095 and 723313023104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (723313023163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361656511566 + 361656511567.

It is an arithmetic number, because the mean of its divisors is an integer number (361656511567).

Almost surely, 2^723313023133 is an apocalyptic number.

It is an amenable number.

723313023133 is a deficient number, since it is larger than the sum of its proper divisors (1).

723313023133 is an equidigital number, since it uses as much as digits as its factorization.

723313023133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20412, while the sum is 31.

The spelling of 723313023133 in words is "seven hundred twenty-three billion, three hundred thirteen million, twenty-three thousand, one hundred thirty-three".