121323454524 has 18 divisors (see below), whose sum is σ = 306678732360. Its totient is φ = 40441151496.

The previous prime is 121323454493. The next prime is 121323454573. The reversal of 121323454524 is 425454323121.

It is a happy number.

121323454524 is a `hidden beast` number, since 1 + 21 + 32 + 34 + 54 + 524 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 3370095959 = 121323454524 / (1 + 2 + 1 + 3 + 2 + 3 + 4 + 5 + 4 + 5 + 2 + 4).

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 1685047944 + ... + 1685048015.

Almost surely, 2^121323454524 is an apocalyptic number.

It is an amenable number.

121323454524 is an abundant number, since it is smaller than the sum of its proper divisors (185355277836).

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

121323454524 is a wasteful number, since it uses less digits than its factorization.

121323454524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3370095969 (or 3370095964 counting only the distinct ones).

The product of its digits is 115200, while the sum is 36.

Adding to 121323454524 its reverse (425454323121), we get a palindrome (546777777645).

The spelling of 121323454524 in words is "one hundred twenty-one billion, three hundred twenty-three million, four hundred fifty-four thousand, five hundred twenty-four".