731012423 has 2 divisors, whose sum is σ = 731012424. Its totient is φ = 731012422.

The previous prime is 731012407. The next prime is 731012453. The reversal of 731012423 is 324210137.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 731012423 - 2⁴ = 731012407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (731012453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 365506211 + 365506212.

It is an arithmetic number, because the mean of its divisors is an integer number (365506212).

Almost surely, 2^731012423 is an apocalyptic number.

731012423 is a deficient number, since it is larger than the sum of its proper divisors (1).

731012423 is an equidigital number, since it uses as much as digits as its factorization.

731012423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 731012423 is about 27037.2414088420. The cubic root of 731012423 is about 900.8273967297.

The spelling of 731012423 in words is "seven hundred thirty-one million, twelve thousand, four hundred twenty-three".