54231220135000 has 40 divisors (see below), whose sum is σ = 127063748788020. Its totient is φ = 21692488052000.

The previous prime is 54231220134967. The next prime is 54231220135007. The reversal of 54231220135000 is 53102213245.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 54231220135000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54231220135007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 5423117014 + ... + 5423127013.

Almost surely, 2^{54231220135000} is an apocalyptic number.

54231220135000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

54231220135000 is an abundant number, since it is smaller than the sum of its proper divisors (72832528653020).

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

54231220135000 is a wasteful number, since it uses less digits than its factorization.

54231220135000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10846244053 (or 10846244034 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 54231220135000 its reverse (53102213245), we get a palindrome (54284322348245).

The spelling of 54231220135000 in words is "fifty-four trillion, two hundred thirty-one billion, two hundred twenty million, one hundred thirty-five thousand".