1323121198 has 8 divisors (see below), whose sum is σ = 2268207792. Its totient is φ = 567051936.

The previous prime is 1323121193. The next prime is 1323121213. The reversal of 1323121198 is 8911213231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323121193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47254315 + ... + 47254342.

It is an arithmetic number, because the mean of its divisors is an integer number (283525974).

Almost surely, 2^1323121198 is an apocalyptic number.

1323121198 is a deficient number, since it is larger than the sum of its proper divisors (945086594).

1323121198 is an equidigital number, since it uses as much as digits as its factorization.

1323121198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94508666.

The product of its digits is 2592, while the sum is 31.

The square root of 1323121198 is about 36374.7329612191. The cubic root of 1323121198 is about 1097.8252343214.

The spelling of 1323121198 in words is "one billion, three hundred twenty-three million, one hundred twenty-one thousand, one hundred ninety-eight".