724925911321 has 2 divisors, whose sum is σ = 724925911322. Its totient is φ = 724925911320.

The previous prime is 724925911261. The next prime is 724925911331. The reversal of 724925911321 is 123119529427.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 581993523225 + 142932388096 = 762885^2 + 378064^2 .

It is a cyclic number.

It is not a de Polignac number, because 724925911321 - 2⁹ = 724925910809 is a prime.

It is not a weakly prime, because it can be changed into another prime (724925911331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362462955660 + 362462955661.

It is an arithmetic number, because the mean of its divisors is an integer number (362462955661).

Almost surely, 2^724925911321 is an apocalyptic number.

It is an amenable number.

724925911321 is a deficient number, since it is larger than the sum of its proper divisors (1).

724925911321 is an equidigital number, since it uses as much as digits as its factorization.

724925911321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 46.

The spelling of 724925911321 in words is "seven hundred twenty-four billion, nine hundred twenty-five million, nine hundred eleven thousand, three hundred twenty-one".