121454495481 has 24 divisors (see below), whose sum is σ = 183741359872. Its totient is φ = 71234301600.

The previous prime is 121454495471. The next prime is 121454495509. The reversal of 121454495481 is 184594454121.

It is not a de Polignac number, because 121454495481 - 2¹³ = 121454487289 is a prime.

It is a super-2 number, since 2×121454495481² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 121454495481.

It is not an unprimeable number, because it can be changed into a prime (121454495471) by changing a digit.

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, 5385286 + ... + 5407791.

Almost surely, 2^121454495481 is an apocalyptic number.

121454495481 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121454495481 is a deficient number, since it is larger than the sum of its proper divisors (62286864391).

121454495481 is a wasteful number, since it uses less digits than its factorization.

121454495481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10793133 (or 10793122 counting only the distinct ones).

The product of its digits is 921600, while the sum is 48.

The spelling of 121454495481 in words is "one hundred twenty-one billion, four hundred fifty-four million, four hundred ninety-five thousand, four hundred eighty-one".