1031230439 has 2 divisors, whose sum is σ = 1031230440. Its totient is φ = 1031230438.

The previous prime is 1031230397. The next prime is 1031230493. The reversal of 1031230439 is 9340321301.

It is a happy number.

Together with next prime (1031230493) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is an emirp because it is prime and its reverse (9340321301) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1031230439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1031220439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515615219 + 515615220.

It is an arithmetic number, because the mean of its divisors is an integer number (515615220).

Almost surely, 2^1031230439 is an apocalyptic number.

1031230439 is a deficient number, since it is larger than the sum of its proper divisors (1).

1031230439 is an equidigital number, since it uses as much as digits as its factorization.

1031230439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 1031230439 is about 32112.7768808616. The cubic root of 1031230439 is about 1010.3036171801.

The spelling of 1031230439 in words is "one billion, thirty-one million, two hundred thirty thousand, four hundred thirty-nine".