1013003081 has 2 divisors, whose sum is σ = 1013003082. Its totient is φ = 1013003080.

The previous prime is 1013003029. The next prime is 1013003087. The reversal of 1013003081 is 1803003101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 953574400 + 59428681 = 30880^2 + 7709^2 .

It is an emirp because it is prime and its reverse (1803003101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1013003081 - 2¹⁰ = 1013002057 is a prime.

It is a super-2 number, since 2×1013003081² = 2052350484230985122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1013003087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506501540 + 506501541.

It is an arithmetic number, because the mean of its divisors is an integer number (506501541).

Almost surely, 2^1013003081 is an apocalyptic number.

It is an amenable number.

1013003081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1013003081 is an equidigital number, since it uses as much as digits as its factorization.

1013003081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1013003081 is about 31827.7093269371. The cubic root of 1013003081 is about 1004.3157082022.

Adding to 1013003081 its reverse (1803003101), we get a palindrome (2816006182).

The spelling of 1013003081 in words is "one billion, thirteen million, three thousand, eighty-one".