121544143354 has 8 divisors (see below), whose sum is σ = 182988969408. Its totient is φ = 60547820220.

The previous prime is 121544143321. The next prime is 121544143367. The reversal of 121544143354 is 453341445121.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112125052 + ... + 112126135.

It is an arithmetic number, because the mean of its divisors is an integer number (22873621176).

Almost surely, 2^121544143354 is an apocalyptic number.

121544143354 is a deficient number, since it is larger than the sum of its proper divisors (61444826054).

121544143354 is a wasteful number, since it uses less digits than its factorization.

121544143354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224251460.

The product of its digits is 115200, while the sum is 37.

Adding to 121544143354 its reverse (453341445121), we get a palindrome (574885588475).

The spelling of 121544143354 in words is "one hundred twenty-one billion, five hundred forty-four million, one hundred forty-three thousand, three hundred fifty-four".