1103330381 has 2 divisors, whose sum is σ = 1103330382. Its totient is φ = 1103330380.

The previous prime is 1103330357. The next prime is 1103330387. The reversal of 1103330381 is 1830333011.

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., 1092897481 + 10432900 = 33059^2 + 3230^2 .

It is a cyclic number.

It is not a de Polignac number, because 1103330381 - 2²⁶ = 1036221517 is a prime.

It is a super-2 number, since 2×1103330381² = 2434675859275210322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1103330387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551665190 + 551665191.

It is an arithmetic number, because the mean of its divisors is an integer number (551665191).

Almost surely, 2^1103330381 is an apocalyptic number.

It is an amenable number.

1103330381 is a deficient number, since it is larger than the sum of its proper divisors (1).

1103330381 is an equidigital number, since it uses as much as digits as its factorization.

1103330381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 1103330381 is about 33216.4173414292. The cubic root of 1103330381 is about 1033.3208495081.

Adding to 1103330381 its reverse (1830333011), we get a palindrome (2933663392).

It can be divided in two parts, 11033 and 30381, that added together give a palindrome (41414).

The spelling of 1103330381 in words is "one billion, one hundred three million, three hundred thirty thousand, three hundred eighty-one".