10981020 has 48 divisors (see below), whose sum is σ = 30891168. Its totient is φ = 2914560.

The previous prime is 10981013. The next prime is 10981027. The reversal of 10981020 is 2018901.

10981020 is nontrivially palindromic in base 11.

It is an interprime number because it is at equal distance from previous prime (10981013) and next prime (10981027).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10981027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23590 + ... + 24050.

It is an arithmetic number, because the mean of its divisors is an integer number (643566).

Almost surely, 2^10981020 is an apocalyptic number.

10981020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10981020 is an abundant number, since it is smaller than the sum of its proper divisors (19910148).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10981020 is a wasteful number, since it uses less digits than its factorization.

10981020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870 (or 868 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 10981020 is about 3313.7622123502. The cubic root of 10981020 is about 222.2700228654.

Adding to 10981020 its reverse (2018901), we get a palindrome (12999921).

The spelling of 10981020 in words is "ten million, nine hundred eighty-one thousand, twenty".