11230331993 has 2 divisors, whose sum is σ = 11230331994. Its totient is φ = 11230331992.

The previous prime is 11230331977. The next prime is 11230332031. The reversal of 11230331993 is 39913303211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11118226249 + 112105744 = 105443^2 + 10588^2 .

It is a cyclic number.

It is not a de Polignac number, because 11230331993 - 2⁴ = 11230331977 is a prime.

It is a super-2 number, since 2×11230331993² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (11230331933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5615165996 + 5615165997.

It is an arithmetic number, because the mean of its divisors is an integer number (5615165997).

Almost surely, 2^11230331993 is an apocalyptic number.

It is an amenable number.

11230331993 is a deficient number, since it is larger than the sum of its proper divisors (1).

11230331993 is an equidigital number, since it uses as much as digits as its factorization.

11230331993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13122, while the sum is 35.

The spelling of 11230331993 in words is "eleven billion, two hundred thirty million, three hundred thirty-one thousand, nine hundred ninety-three".