1011404423 has 2 divisors, whose sum is σ = 1011404424. Its totient is φ = 1011404422.

The previous prime is 1011404417. The next prime is 1011404437. The reversal of 1011404423 is 3244041101.

1011404423 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 a de Polignac number, because none of the positive numbers 2^k-1011404423 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 1011404395 and 1011404404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1011404453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505702211 + 505702212.

It is an arithmetic number, because the mean of its divisors is an integer number (505702212).

Almost surely, 2^1011404423 is an apocalyptic number.

1011404423 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011404423 is an equidigital number, since it uses as much as digits as its factorization.

1011404423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1011404423 is about 31802.5851622160. The cubic root of 1011404423 is about 1003.7871139957.

Adding to 1011404423 its reverse (3244041101), we get a palindrome (4255445524).

The spelling of 1011404423 in words is "one billion, eleven million, four hundred four thousand, four hundred twenty-three".