11638031 has 2 divisors, whose sum is σ = 11638032. Its totient is φ = 11638030.

The previous prime is 11638027. The next prime is 11638049. The reversal of 11638031 is 13083611.

11638031 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 weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11638031 - 2² = 11638027 is a prime.

It is a super-2 number, since 2×11638031² = 270887531113922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11637988 and 11638006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11638001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5819015 + 5819016.

It is an arithmetic number, because the mean of its divisors is an integer number (5819016).

Almost surely, 2^11638031 is an apocalyptic number.

11638031 is a deficient number, since it is larger than the sum of its proper divisors (1).

11638031 is an equidigital number, since it uses as much as digits as its factorization.

11638031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 11638031 is about 3411.4558475818. The cubic root of 11638031 is about 226.6173568728.

The spelling of 11638031 in words is "eleven million, six hundred thirty-eight thousand, thirty-one".