121410343555 has 24 divisors (see below), whose sum is σ = 154822560912. Its totient is φ = 91381842432.

The previous prime is 121410343541. The next prime is 121410343591. The reversal of 121410343555 is 555343014121.

It is not a de Polignac number, because 121410343555 - 2²¹ = 121408246403 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121410343555.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4441309 + ... + 4468561.

It is an arithmetic number, because the mean of its divisors is an integer number (6450940038).

Almost surely, 2^121410343555 is an apocalyptic number.

121410343555 is a deficient number, since it is larger than the sum of its proper divisors (33412217357).

121410343555 is a wasteful number, since it uses less digits than its factorization.

121410343555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30375 (or 30358 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 34.

Adding to 121410343555 its reverse (555343014121), we get a palindrome (676753357676).

The spelling of 121410343555 in words is "one hundred twenty-one billion, four hundred ten million, three hundred forty-three thousand, five hundred fifty-five".