121923296198 has 8 divisors (see below), whose sum is σ = 199510848360. Its totient is φ = 55419680080.

The previous prime is 121923296111. The next prime is 121923296347. The reversal of 121923296198 is 891692329121.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2770983983 + ... + 2770984026.

It is an arithmetic number, because the mean of its divisors is an integer number (24938856045).

Almost surely, 2^121923296198 is an apocalyptic number.

121923296198 is a deficient number, since it is larger than the sum of its proper divisors (77587552162).

121923296198 is a wasteful number, since it uses less digits than its factorization.

121923296198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5541968022.

The product of its digits is 839808, while the sum is 53.

The spelling of 121923296198 in words is "one hundred twenty-one billion, nine hundred twenty-three million, two hundred ninety-six thousand, one hundred ninety-eight".