1190198230921 has 4 divisors (see below), whose sum is σ = 1360226549632. Its totient is φ = 1020169912212.

The previous prime is 1190198230867. The next prime is 1190198231029. The reversal of 1190198230921 is 1290328910911.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1190198230921 - 2¹³ = 1190198222729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1190198230721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85014159345 + ... + 85014159358.

It is an arithmetic number, because the mean of its divisors is an integer number (340056637408).

Almost surely, 2^{1190198230921} is an apocalyptic number.

It is an amenable number.

1190198230921 is a deficient number, since it is larger than the sum of its proper divisors (170028318711).

1190198230921 is an equidigital number, since it uses as much as digits as its factorization.

1190198230921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170028318710.

The product of its (nonzero) digits is 69984, while the sum is 46.

The spelling of 1190198230921 in words is "one trillion, one hundred ninety billion, one hundred ninety-eight million, two hundred thirty thousand, nine hundred twenty-one".