111302002381 has 2 divisors, whose sum is σ = 111302002382. Its totient is φ = 111302002380.

The previous prime is 111302002277. The next prime is 111302002411. The reversal of 111302002381 is 183200203111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83526780100 + 27775222281 = 289010^2 + 166659^2 .

It is a cyclic number.

It is not a de Polignac number, because 111302002381 - 2⁹ = 111302001869 is a prime.

It is a super-2 number, since 2×111302002381² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111302072381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55651001190 + 55651001191.

It is an arithmetic number, because the mean of its divisors is an integer number (55651001191).

Almost surely, 2^111302002381 is an apocalyptic number.

It is an amenable number.

111302002381 is a deficient number, since it is larger than the sum of its proper divisors (1).

111302002381 is an equidigital number, since it uses as much as digits as its factorization.

111302002381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 111302002381 its reverse (183200203111), we get a palindrome (294502205492).

The spelling of 111302002381 in words is "one hundred eleven billion, three hundred two million, two thousand, three hundred eighty-one".