11923403 has 2 divisors, whose sum is σ = 11923404. Its totient is φ = 11923402.

The previous prime is 11923381. The next prime is 11923423. The reversal of 11923403 is 30432911.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11923403 - 2⁶ = 11923339 is a prime.

It is not a weakly prime, because it can be changed into another prime (11923423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5961701 + 5961702.

It is an arithmetic number, because the mean of its divisors is an integer number (5961702).

Almost surely, 2^11923403 is an apocalyptic number.

11923403 is a deficient number, since it is larger than the sum of its proper divisors (1).

11923403 is an equidigital number, since it uses as much as digits as its factorization.

11923403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 11923403 is about 3453.0280914004. The cubic root of 11923403 is about 228.4546879493.

The spelling of 11923403 in words is "eleven million, nine hundred twenty-three thousand, four hundred three".