1131709215090 has 64 divisors (see below), whose sum is σ = 2778524467200. Its totient is φ = 294874756800.

The previous prime is 1131709215067. The next prime is 1131709215101. The reversal of 1131709215090 is 905129071311.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 174615 + ... + 1514565.

It is an arithmetic number, because the mean of its divisors is an integer number (43414444800).

Almost surely, 2^{1131709215090} is an apocalyptic number.

1131709215090 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 1131709215090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1389262233600).

1131709215090 is an abundant number, since it is smaller than the sum of its proper divisors (1646815252110).

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

1131709215090 is a wasteful number, since it uses less digits than its factorization.

1131709215090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340607.

The product of its (nonzero) digits is 17010, while the sum is 39.

The spelling of 1131709215090 in words is "one trillion, one hundred thirty-one billion, seven hundred nine million, two hundred fifteen thousand, ninety".