723372131 has 2 divisors, whose sum is σ = 723372132. Its totient is φ = 723372130.

The previous prime is 723372121. The next prime is 723372173. The reversal of 723372131 is 131273327.

723372131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 723372131 - 2¹⁰ = 723371107 is a prime.

It is a super-2 number, since 2×723372131² = 1046534479814962322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 723372094 and 723372103.

It is not a weakly prime, because it can be changed into another prime (723372121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361686065 + 361686066.

It is an arithmetic number, because the mean of its divisors is an integer number (361686066).

Almost surely, 2^723372131 is an apocalyptic number.

723372131 is a deficient number, since it is larger than the sum of its proper divisors (1).

723372131 is an equidigital number, since it uses as much as digits as its factorization.

723372131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5292, while the sum is 29.

The square root of 723372131 is about 26895.5782797098. The cubic root of 723372131 is about 897.6780190168.

The spelling of 723372131 in words is "seven hundred twenty-three million, three hundred seventy-two thousand, one hundred thirty-one".