11538403 has 2 divisors, whose sum is σ = 11538404. Its totient is φ = 11538402.

The previous prime is 11538383. The next prime is 11538409. The reversal of 11538403 is 30483511.

11538403 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11538403 - 2⁹ = 11537891 is a prime.

It is not a weakly prime, because it can be changed into another prime (11538409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5769201 + 5769202.

It is an arithmetic number, because the mean of its divisors is an integer number (5769202).

Almost surely, 2^11538403 is an apocalyptic number.

11538403 is a deficient number, since it is larger than the sum of its proper divisors (1).

11538403 is an equidigital number, since it uses as much as digits as its factorization.

11538403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 11538403 is about 3396.8224857946. The cubic root of 11538403 is about 225.9688460463.

The spelling of 11538403 in words is "eleven million, five hundred thirty-eight thousand, four hundred three".