981031122 has 64 divisors (see below), whose sum is σ = 2213602560. Its totient is φ = 322019712.

The previous prime is 981031109. The next prime is 981031127. The reversal of 981031122 is 221130189.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (981031127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1295568 + ... + 1296324.

It is an arithmetic number, because the mean of its divisors is an integer number (34587540).

Almost surely, 2^981031122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 981031122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1106801280).

981031122 is an abundant number, since it is smaller than the sum of its proper divisors (1232571438).

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

981031122 is a wasteful number, since it uses less digits than its factorization.

981031122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1104 (or 1098 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 981031122 is about 31321.4163472854. The cubic root of 981031122 is about 993.6366341309.

It can be divided in two parts, 98103 and 1122, that added together give a square (99225 = 315²).

The spelling of 981031122 in words is "nine hundred eighty-one million, thirty-one thousand, one hundred twenty-two".