1013208881 has 2 divisors, whose sum is σ = 1013208882. Its totient is φ = 1013208880.

The previous prime is 1013208863. The next prime is 1013208883. The reversal of 1013208881 is 1888023101.

It is a happy number.

1013208881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1003875856 + 9333025 = 31684^2 + 3055^2 .

It is a cyclic number.

It is not a de Polignac number, because 1013208881 - 2¹⁰ = 1013207857 is a prime.

It is a super-2 number, since 2×1013208881² = 2053184473074544322, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 1013208883, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1013208883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506604440 + 506604441.

It is an arithmetic number, because the mean of its divisors is an integer number (506604441).

Almost surely, 2^1013208881 is an apocalyptic number.

It is an amenable number.

1013208881 is a deficient number, since it is larger than the sum of its proper divisors (1).

1013208881 is an equidigital number, since it uses as much as digits as its factorization.

1013208881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3072, while the sum is 32.

The square root of 1013208881 is about 31830.9421946634. The cubic root of 1013208881 is about 1004.3837152930.

The spelling of 1013208881 in words is "one billion, thirteen million, two hundred eight thousand, eight hundred eighty-one".