1131909753810 has 128 divisors (see below), whose sum is σ = 3035893976064. Its totient is φ = 267780015360.

The previous prime is 1131909753749. The next prime is 1131909753823. The reversal of 1131909753810 is 183579091311.

It is a super-2 number, since 2×1131909753810² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1131909753810.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2126544 + ... + 2604996.

It is an arithmetic number, because the mean of its divisors is an integer number (23717921688).

Almost surely, 2^{1131909753810} is an apocalyptic number.

1131909753810 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 1131909753810, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1517946988032).

1131909753810 is an abundant number, since it is smaller than the sum of its proper divisors (1903984222254).

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

1131909753810 is a wasteful number, since it uses less digits than its factorization.

1131909753810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478648.

The product of its (nonzero) digits is 204120, while the sum is 48.

The spelling of 1131909753810 in words is "one trillion, one hundred thirty-one billion, nine hundred nine million, seven hundred fifty-three thousand, eight hundred ten".