54012040121 has 16 divisors (see below), whose sum is σ = 59431916544. Its totient is φ = 48773876544.

The previous prime is 54012040099. The next prime is 54012040177. The reversal of 54012040121 is 12104021045.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 54012040121 - 2³⁰ = 52938298297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 54012040093 and 54012040102.

It is not an unprimeable number, because it can be changed into a prime (54012045121) 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, 1378031 + ... + 1416683.

It is an arithmetic number, because the mean of its divisors is an integer number (3714494784).

Almost surely, 2^54012040121 is an apocalyptic number.

It is an amenable number.

54012040121 is a deficient number, since it is larger than the sum of its proper divisors (5419876423).

54012040121 is a wasteful number, since it uses less digits than its factorization.

54012040121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41000.

The product of its (nonzero) digits is 320, while the sum is 20.

Adding to 54012040121 its reverse (12104021045), we get a palindrome (66116061166).

The spelling of 54012040121 in words is "fifty-four billion, twelve million, forty thousand, one hundred twenty-one".