11231993 has 2 divisors, whose sum is σ = 11231994. Its totient is φ = 11231992.

The previous prime is 11231989. The next prime is 11232017. The reversal of 11231993 is 39913211.

11231993 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11202409 + 29584 = 3347^2 + 172^2 .

It is a cyclic number.

It is not a de Polignac number, because 11231993 - 2² = 11231989 is a prime.

It is a Chen prime.

It is equal to p₇₄₀₈₁₉ and since 11231993 and 740819 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (11231923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5615996 + 5615997.

It is an arithmetic number, because the mean of its divisors is an integer number (5615997).

Almost surely, 2^11231993 is an apocalyptic number.

It is an amenable number.

11231993 is a deficient number, since it is larger than the sum of its proper divisors (1).

11231993 is an equidigital number, since it uses as much as digits as its factorization.

11231993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1458, while the sum is 29.

The square root of 11231993 is about 3351.4165661702. The cubic root of 11231993 is about 223.9506228856.

The spelling of 11231993 in words is "eleven million, two hundred thirty-one thousand, nine hundred ninety-three".