1089423403 has 2 divisors, whose sum is σ = 1089423404. Its totient is φ = 1089423402.

The previous prime is 1089423373. The next prime is 1089423437. The reversal of 1089423403 is 3043249801.

It is an a-pointer prime, because the next prime (1089423437) can be obtained adding 1089423403 to its sum of digits (34).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1089423403 - 2⁵ = 1089423371 is a prime.

It is not a weakly prime, because it can be changed into another prime (1089423473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 544711701 + 544711702.

It is an arithmetic number, because the mean of its divisors is an integer number (544711702).

Almost surely, 2^1089423403 is an apocalyptic number.

1089423403 is a deficient number, since it is larger than the sum of its proper divisors (1).

1089423403 is an equidigital number, since it uses as much as digits as its factorization.

1089423403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 1089423403 is about 33006.4145735340. The cubic root of 1089423403 is about 1028.9609665337.

The spelling of 1089423403 in words is "one billion, eighty-nine million, four hundred twenty-three thousand, four hundred three".