1190198230920 has 240 divisors, whose sum is σ = 4133606837580. Its totient is φ = 307147127040.

The previous prime is 1190198230867. The next prime is 1190198231029. The reversal of 1190198230920 is 290328910911.

It can be written as a sum of positive squares in 2 ways, for example, as 1185176240964 + 5021989956 = 1088658^2 + 70866^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 2922514 + ... + 3304766.

Almost surely, 2^{1190198230920} is an apocalyptic number.

1190198230920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1190198230920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2066803418790).

1190198230920 is an abundant number, since it is smaller than the sum of its proper divisors (2943408606660).

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

1190198230920 is a wasteful number, since it uses less digits than its factorization.

1190198230920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382338 (or 382294 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 45.

The spelling of 1190198230920 in words is "one trillion, one hundred ninety billion, one hundred ninety-eight million, two hundred thirty thousand, nine hundred twenty".