1135205234520 has 128 divisors (see below), whose sum is σ = 3946951203840. Its totient is φ = 255820884480.

The previous prime is 1135205234507. The next prime is 1135205234531. The reversal of 1135205234520 is 254325025311.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9457507 + ... + 9576786.

It is an arithmetic number, because the mean of its divisors is an integer number (30835556280).

Almost surely, 2^{1135205234520} is an apocalyptic number.

1135205234520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1135205234520 is an abundant number, since it is smaller than the sum of its proper divisors (2811745969320).

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

1135205234520 is a wasteful number, since it uses less digits than its factorization.

1135205234520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19034385 (or 19034381 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 33.

The spelling of 1135205234520 in words is "one trillion, one hundred thirty-five billion, two hundred five million, two hundred thirty-four thousand, five hundred twenty".