1101981348 has 120 divisors (see below), whose sum is σ = 3153990840. Its totient is φ = 333434880.

The previous prime is 1101981347. The next prime is 1101981371. The reversal of 1101981348 is 8431891011.

It can be written as a sum of positive squares in 4 ways, for example, as 29942784 + 1072038564 = 5472^2 + 32742^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1101981347) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 254788 + ... + 259076.

It is an arithmetic number, because the mean of its divisors is an integer number (26283257).

Almost surely, 2^1101981348 is an apocalyptic number.

1101981348 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1101981348, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1576995420).

1101981348 is an abundant number, since it is smaller than the sum of its proper divisors (2052009492).

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

1101981348 is a wasteful number, since it uses less digits than its factorization.

1101981348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4379 (or 4368 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 36.

The square root of 1101981348 is about 33196.1044100057. The cubic root of 1101981348 is about 1032.8995334413.

The spelling of 1101981348 in words is "one billion, one hundred one million, nine hundred eighty-one thousand, three hundred forty-eight".