10981031 has 8 divisors (see below), whose sum is σ = 12239280. Its totient is φ = 9790848.

The previous prime is 10981027. The next prime is 10981063. The reversal of 10981031 is 13018901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10981031 - 2² = 10981027 is a prime.

It is a super-2 number, since 2×10981031² = 241166083645922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10980988 and 10981006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10981231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16676 + ... + 17321.

It is an arithmetic number, because the mean of its divisors is an integer number (1529910).

Almost surely, 2^10981031 is an apocalyptic number.

10981031 is a deficient number, since it is larger than the sum of its proper divisors (1258249).

10981031 is a wasteful number, since it uses less digits than its factorization.

10981031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34033.

The product of its (nonzero) digits is 216, while the sum is 23.

The square root of 10981031 is about 3313.7638720947. The cubic root of 10981031 is about 222.2700970834.

Adding to 10981031 its reverse (13018901), we get a palindrome (23999932).

The spelling of 10981031 in words is "ten million, nine hundred eighty-one thousand, thirty-one".