1043923381 has 2 divisors, whose sum is σ = 1043923382. Its totient is φ = 1043923380.

The previous prime is 1043923373. The next prime is 1043923399. The reversal of 1043923381 is 1833293401.

1043923381 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 can be written as a sum of positive squares in only one way, i.e., 807071281 + 236852100 = 28409^2 + 15390^2 .

It is a cyclic number.

It is not a de Polignac number, because 1043923381 - 2³ = 1043923373 is a prime.

It is a super-2 number, since 2×1043923381² = 2179552050796942322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1043923781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521961690 + 521961691.

It is an arithmetic number, because the mean of its divisors is an integer number (521961691).

Almost surely, 2^1043923381 is an apocalyptic number.

It is an amenable number.

1043923381 is a deficient number, since it is larger than the sum of its proper divisors (1).

1043923381 is an equidigital number, since it uses as much as digits as its factorization.

1043923381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 1043923381 is about 32309.8031717929. The cubic root of 1043923381 is about 1014.4318468501.

The spelling of 1043923381 in words is "one billion, forty-three million, nine hundred twenty-three thousand, three hundred eighty-one".