1091130510 has 64 divisors (see below), whose sum is σ = 2749593600. Its totient is φ = 276726912.

The previous prime is 1091130503. The next prime is 1091130517. The reversal of 1091130510 is 150311901.

It is an interprime number because it is at equal distance from previous prime (1091130503) and next prime (1091130517).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1091130517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48931 + ... + 67649.

It is an arithmetic number, because the mean of its divisors is an integer number (42962400).

Almost surely, 2^1091130510 is an apocalyptic number.

1091130510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1091130510, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1374796800).

1091130510 is an abundant number, since it is smaller than the sum of its proper divisors (1658463090).

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

1091130510 is a wasteful number, since it uses less digits than its factorization.

1091130510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18825.

The product of its (nonzero) digits is 135, while the sum is 21.

The square root of 1091130510 is about 33032.2646816715. The cubic root of 1091130510 is about 1029.4981405316.

The spelling of 1091130510 in words is "one billion, ninety-one million, one hundred thirty thousand, five hundred ten".