121354533354 has 32 divisors (see below), whose sum is σ = 257124563136. Its totient is φ = 38051493120.

The previous prime is 121354533353. The next prime is 121354533367. The reversal of 121354533354 is 453335453121.

121354533354 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (121354533353) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129832 + ... + 509475.

It is an arithmetic number, because the mean of its divisors is an integer number (8035142598).

Almost surely, 2^121354533354 is an apocalyptic number.

121354533354 is an abundant number, since it is smaller than the sum of its proper divisors (135770029782).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121354533354 is a wasteful number, since it uses less digits than its factorization.

121354533354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641190.

The product of its digits is 324000, while the sum is 39.

Adding to 121354533354 its reverse (453335453121), we get a palindrome (574689986475).

The spelling of 121354533354 in words is "one hundred twenty-one billion, three hundred fifty-four million, five hundred thirty-three thousand, three hundred fifty-four".