10000110981 has 16 divisors (see below), whose sum is σ = 15306604544. Its totient is φ = 5688721584.

The previous prime is 10000110973. The next prime is 10000110983. The reversal of 10000110981 is 18901100001.

It is not a de Polignac number, because 10000110981 - 2³ = 10000110973 is a prime.

It is a super-2 number, since 2×10000110981² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10000110983) 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, 1063021 + ... + 1072386.

It is an arithmetic number, because the mean of its divisors is an integer number (956662784).

Almost surely, 2^10000110981 is an apocalyptic number.

It is an amenable number.

10000110981 is a deficient number, since it is larger than the sum of its proper divisors (5306493563).

10000110981 is a wasteful number, since it uses less digits than its factorization.

10000110981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2135640.

The product of its (nonzero) digits is 72, while the sum is 21.

Adding to 10000110981 its reverse (18901100001), we get a palindrome (28901210982).

The spelling of 10000110981 in words is "ten billion, one hundred ten thousand, nine hundred eighty-one".