121105154146 has 8 divisors (see below), whose sum is σ = 182333039580. Its totient is φ = 60327474288.

The previous prime is 121105154143. The next prime is 121105154167. The reversal of 121105154146 is 641451501121.

121105154146 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 119235543025 + 1869611121 = 345305^2 + 43239^2 .

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

It is not an unprimeable number, because it can be changed into a prime (121105154143) 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, 112550721 + ... + 112551796.

Almost surely, 2^121105154146 is an apocalyptic number.

121105154146 is a deficient number, since it is larger than the sum of its proper divisors (61227885434).

121105154146 is a wasteful number, since it uses less digits than its factorization.

121105154146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225102788.

The product of its (nonzero) digits is 4800, while the sum is 31.

Adding to 121105154146 its reverse (641451501121), we get a palindrome (762556655267).

The spelling of 121105154146 in words is "one hundred twenty-one billion, one hundred five million, one hundred fifty-four thousand, one hundred forty-six".