54321234511 has 4 divisors (see below), whose sum is σ = 54537654024. Its totient is φ = 54104815000.

The previous prime is 54321234481. The next prime is 54321234587. The reversal of 54321234511 is 11543212345.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 54321234511 - 2²¹ = 54319137359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54321234211) 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 3 ways as a sum of consecutive naturals, for example, 108209380 + ... + 108209881.

It is an arithmetic number, because the mean of its divisors is an integer number (13634413506).

Almost surely, 2^54321234511 is an apocalyptic number.

54321234511 is a deficient number, since it is larger than the sum of its proper divisors (216419513).

54321234511 is a wasteful number, since it uses less digits than its factorization.

54321234511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216419512.

The product of its digits is 14400, while the sum is 31.

Adding to 54321234511 its reverse (11543212345), we get a palindrome (65864446856).

It can be divided in two parts, 543212345 and 11, that multiplied together give a palindrome (5975335795).

The spelling of 54321234511 in words is "fifty-four billion, three hundred twenty-one million, two hundred thirty-four thousand, five hundred eleven".