124221253143 has 32 divisors (see below), whose sum is σ = 179165952000. Its totient is φ = 76103030016.

The previous prime is 124221253067. The next prime is 124221253147. The reversal of 124221253143 is 341352122421.

It is a happy number.

It is not a de Polignac number, because 124221253143 - 2¹³ = 124221244951 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 124221253143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124221253147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8566243 + ... + 8580731.

It is an arithmetic number, because the mean of its divisors is an integer number (5598936000).

Almost surely, 2^124221253143 is an apocalyptic number.

124221253143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

124221253143 is a deficient number, since it is larger than the sum of its proper divisors (54944698857).

124221253143 is a wasteful number, since it uses less digits than its factorization.

124221253143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15471.

The product of its digits is 11520, while the sum is 30.

Adding to 124221253143 its reverse (341352122421), we get a palindrome (465573375564).

The spelling of 124221253143 in words is "one hundred twenty-four billion, two hundred twenty-one million, two hundred fifty-three thousand, one hundred forty-three".