11286820331 has 2 divisors, whose sum is σ = 11286820332. Its totient is φ = 11286820330.

The previous prime is 11286820313. The next prime is 11286820339. The reversal of 11286820331 is 13302868211.

It is a happy number.

Together with previous prime (11286820313) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11286820331 is a prime.

It is a super-2 number, since 2×11286820331² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11286820291 and 11286820300.

It is not a weakly prime, because it can be changed into another prime (11286820339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5643410165 + 5643410166.

It is an arithmetic number, because the mean of its divisors is an integer number (5643410166).

Almost surely, 2^11286820331 is an apocalyptic number.

11286820331 is a deficient number, since it is larger than the sum of its proper divisors (1).

11286820331 is an equidigital number, since it uses as much as digits as its factorization.

11286820331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 35.

The spelling of 11286820331 in words is "eleven billion, two hundred eighty-six million, eight hundred twenty thousand, three hundred thirty-one".