121434004512551 has 8 divisors (see below), whose sum is σ = 124455933226800. Its totient is φ = 118414938832960.

The previous prime is 121434004512497. The next prime is 121434004512577. The reversal of 121434004512551 is 155215400434121.

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

It is a cyclic number.

It is not a de Polignac number, because 121434004512551 - 2³⁰ = 121432930770727 is a prime.

It is a super-2 number, since 2×121434004512551² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121434004712551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 715672781 + ... + 715842438.

It is an arithmetic number, because the mean of its divisors is an integer number (15556991653350).

Almost surely, 2^{121434004512551} is an apocalyptic number.

121434004512551 is a deficient number, since it is larger than the sum of its proper divisors (3021928714249).

121434004512551 is a wasteful number, since it uses less digits than its factorization.

121434004512551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1431517329.

The product of its (nonzero) digits is 96000, while the sum is 38.

Adding to 121434004512551 its reverse (155215400434121), we get a palindrome (276649404946672).

The spelling of 121434004512551 in words is "one hundred twenty-one trillion, four hundred thirty-four billion, four million, five hundred twelve thousand, five hundred fifty-one".