11023123403 has 2 divisors, whose sum is σ = 11023123404. Its totient is φ = 11023123402.

The previous prime is 11023123399. The next prime is 11023123417. The reversal of 11023123403 is 30432132011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11023123403 - 2² = 11023123399 is a prime.

It is not a weakly prime, because it can be changed into another prime (11023123483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5511561701 + 5511561702.

It is an arithmetic number, because the mean of its divisors is an integer number (5511561702).

Almost surely, 2^11023123403 is an apocalyptic number.

11023123403 is a deficient number, since it is larger than the sum of its proper divisors (1).

11023123403 is an equidigital number, since it uses as much as digits as its factorization.

11023123403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 11023123403 its reverse (30432132011), we get a palindrome (41455255414).

The spelling of 11023123403 in words is "eleven billion, twenty-three million, one hundred twenty-three thousand, four hundred three".