1031344421 has 2 divisors, whose sum is σ = 1031344422. Its totient is φ = 1031344420.

The previous prime is 1031344411. The next prime is 1031344427. The reversal of 1031344421 is 1244431301.

1031344421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 958583521 + 72760900 = 30961^2 + 8530^2 .

It is an emirp because it is prime and its reverse (1244431301) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1031344421 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1031344427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515672210 + 515672211.

It is an arithmetic number, because the mean of its divisors is an integer number (515672211).

Almost surely, 2^1031344421 is an apocalyptic number.

It is an amenable number.

1031344421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1031344421 is an equidigital number, since it uses as much as digits as its factorization.

1031344421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 1031344421 is about 32114.5515459892. The cubic root of 1031344421 is about 1010.3408387942.

Adding to 1031344421 its reverse (1244431301), we get a palindrome (2275775722).

The spelling of 1031344421 in words is "one billion, thirty-one million, three hundred forty-four thousand, four hundred twenty-one".