1089231050820 has 96 divisors (see below), whose sum is σ = 3335047188480. Its totient is φ = 263425740160.

The previous prime is 1089231050783. The next prime is 1089231050839. The reversal of 1089231050820 is 280501329801.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1692852 + ... + 2245931.

It is an arithmetic number, because the mean of its divisors is an integer number (34740074880).

Almost surely, 2^{1089231050820} is an apocalyptic number.

1089231050820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1089231050820 is an abundant number, since it is smaller than the sum of its proper divisors (2245816137660).

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

1089231050820 is a wasteful number, since it uses less digits than its factorization.

1089231050820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3939225 (or 3939223 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 39.

The spelling of 1089231050820 in words is "one trillion, eighty-nine billion, two hundred thirty-one million, fifty thousand, eight hundred twenty".