124002400111252 has 24 divisors (see below), whose sum is σ = 237527926574792. Its totient is φ = 56293649481600.

The previous prime is 124002400111243. The next prime is 124002400111253. The reversal of 124002400111252 is 252111004200421.

It can be written as a sum of positive squares in 4 ways, for example, as 801590739856 + 123200809371396 = 895316^2 + 11099586^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124002400111253) 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, 19546402899 + ... + 19546409242.

Almost surely, 2^{124002400111252} is an apocalyptic number.

It is an amenable number.

124002400111252 is a deficient number, since it is larger than the sum of its proper divisors (113525526463540).

124002400111252 is a wasteful number, since it uses less digits than its factorization.

124002400111252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39092812219 (or 39092812217 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 25.

Adding to 124002400111252 its reverse (252111004200421), we get a palindrome (376113404311673).

The spelling of 124002400111252 in words is "one hundred twenty-four trillion, two billion, four hundred million, one hundred eleven thousand, two hundred fifty-two".