1300118381 has 2 divisors, whose sum is σ = 1300118382. Its totient is φ = 1300118380.

The previous prime is 1300118357. The next prime is 1300118389. The reversal of 1300118381 is 1838110031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 994393156 + 305725225 = 31534^2 + 17485^2 .

It is a cyclic number.

It is not a de Polignac number, because 1300118381 - 2¹⁸ = 1299856237 is a prime.

It is a super-2 number, since 2×1300118381² = 3380615609228122322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1300118381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1300118389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 650059190 + 650059191.

It is an arithmetic number, because the mean of its divisors is an integer number (650059191).

Almost surely, 2^1300118381 is an apocalyptic number.

It is an amenable number.

1300118381 is a deficient number, since it is larger than the sum of its proper divisors (1).

1300118381 is an equidigital number, since it uses as much as digits as its factorization.

1300118381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 1300118381 is about 36057.1543663667. The cubic root of 1300118381 is about 1091.4260103071.

The spelling of 1300118381 in words is "one billion, three hundred million, one hundred eighteen thousand, three hundred eighty-one".