723248131 has 2 divisors, whose sum is σ = 723248132. Its totient is φ = 723248130.

The previous prime is 723248111. The next prime is 723248171. The reversal of 723248131 is 131842327.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 723248131 - 2⁹ = 723247619 is a prime.

It is a super-2 number, since 2×723248131² = 1046175717989986322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 723248093 and 723248102.

It is not a weakly prime, because it can be changed into another prime (723248111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361624065 + 361624066.

It is an arithmetic number, because the mean of its divisors is an integer number (361624066).

Almost surely, 2^723248131 is an apocalyptic number.

723248131 is a deficient number, since it is larger than the sum of its proper divisors (1).

723248131 is an equidigital number, since it uses as much as digits as its factorization.

723248131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 31.

The square root of 723248131 is about 26893.2729692762. The cubic root of 723248131 is about 897.6267229501.

The spelling of 723248131 in words is "seven hundred twenty-three million, two hundred forty-eight thousand, one hundred thirty-one".