124021121252243 has 8 divisors (see below), whose sum is σ = 129442419138816. Its totient is φ = 118602246301000.

The previous prime is 124021121252167. The next prime is 124021121252269. The reversal of 124021121252243 is 342252121120421.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 124021121252243 - 2²⁰ = 124021120203667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124021121252293) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 605629223 + ... + 605833968.

It is an arithmetic number, because the mean of its divisors is an integer number (16180302392352).

Almost surely, 2^{124021121252243} is an apocalyptic number.

124021121252243 is a deficient number, since it is larger than the sum of its proper divisors (5421297886573).

124021121252243 is a wasteful number, since it uses less digits than its factorization.

124021121252243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1211467665.

The product of its (nonzero) digits is 15360, while the sum is 32.

Adding to 124021121252243 its reverse (342252121120421), we get a palindrome (466273242372664).

The spelling of 124021121252243 in words is "one hundred twenty-four trillion, twenty-one billion, one hundred twenty-one million, two hundred fifty-two thousand, two hundred forty-three".