1113299381 has 2 divisors, whose sum is σ = 1113299382. Its totient is φ = 1113299380.

The previous prime is 1113299359. The next prime is 1113299389. The reversal of 1113299381 is 1839923111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 856498756 + 256800625 = 29266^2 + 16025^2 .

It is a cyclic number.

It is not a de Polignac number, because 1113299381 - 2¹⁰ = 1113298357 is a prime.

It is a super-2 number, since 2×1113299381² = 2478871023469966322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1113299389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556649690 + 556649691.

It is an arithmetic number, because the mean of its divisors is an integer number (556649691).

Almost surely, 2^1113299381 is an apocalyptic number.

It is an amenable number.

1113299381 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113299381 is an equidigital number, since it uses as much as digits as its factorization.

1113299381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11664, while the sum is 38.

The square root of 1113299381 is about 33366.1412362892. The cubic root of 1113299381 is about 1036.4236691003.

The spelling of 1113299381 in words is "one billion, one hundred thirteen million, two hundred ninety-nine thousand, three hundred eighty-one".