4123121250 has 40 divisors (see below), whose sum is σ = 10304514000. Its totient is φ = 1099498000.

The previous prime is 4123121237. The next prime is 4123121251. The reversal of 4123121250 is 521213214.

It is not an unprimeable number, because it can be changed into a prime (4123121251) 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 19 ways as a sum of consecutive naturals, for example, 546000 + ... + 553499.

It is an arithmetic number, because the mean of its divisors is an integer number (257612850).

Almost surely, 2^4123121250 is an apocalyptic number.

4123121250 is an abundant number, since it is smaller than the sum of its proper divisors (6181392750).

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

4123121250 is a wasteful number, since it uses less digits than its factorization.

4123121250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1099524 (or 1099509 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 4123121250 is about 64211.5351786577. The cubic root of 4123121250 is about 1603.5236470087.

Adding to 4123121250 its reverse (521213214), we get a palindrome (4644334464).

It can be divided in two parts, 41231 and 21250, that added together give a triangular number (62481 = T₃₅₃).

The spelling of 4123121250 in words is "four billion, one hundred twenty-three million, one hundred twenty-one thousand, two hundred fifty".