1010981081 has 16 divisors (see below), whose sum is σ = 1139106240. Its totient is φ = 889174080.

The previous prime is 1010981071. The next prime is 1010981099. The reversal of 1010981081 is 1801890101.

It is a cyclic number.

It is not a de Polignac number, because 1010981081 - 2¹⁰ = 1010980057 is a prime.

It is a super-2 number, since 2×1010981081² = 2044165492279857122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1010981011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65915 + ... + 79791.

It is an arithmetic number, because the mean of its divisors is an integer number (71194140).

Almost surely, 2^1010981081 is an apocalyptic number.

1010981081 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1010981081 is a deficient number, since it is larger than the sum of its proper divisors (128125159).

1010981081 is a wasteful number, since it uses less digits than its factorization.

1010981081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14104.

The product of its (nonzero) digits is 576, while the sum is 29.

The square root of 1010981081 is about 31795.9286859183. The cubic root of 1010981081 is about 1003.6470432393.

The spelling of 1010981081 in words is "one billion, ten million, nine hundred eighty-one thousand, eighty-one".