5121121424 has 10 divisors (see below), whose sum is σ = 9922172790. Its totient is φ = 2560560704.

The previous prime is 5121121409. The next prime is 5121121427. The reversal of 5121121424 is 4241211215.

It can be written as a sum of positive squares in only one way, i.e., 4895521024 + 225600400 = 69968^2 + 15020^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 5121121424.

It is not an unprimeable number, because it can be changed into a prime (5121121427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160035029 + ... + 160035060.

It is an arithmetic number, because the mean of its divisors is an integer number (992217279).

Almost surely, 2^5121121424 is an apocalyptic number.

It is an amenable number.

5121121424 is a deficient number, since it is larger than the sum of its proper divisors (4801051366).

5121121424 is a wasteful number, since it uses less digits than its factorization.

5121121424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320070097 (or 320070091 counting only the distinct ones).

The product of its digits is 640, while the sum is 23.

The square root of 5121121424 is about 71562.0110393776. The cubic root of 5121121424 is about 1723.6735779836.

Adding to 5121121424 its reverse (4241211215), we get a palindrome (9362332639).

The spelling of 5121121424 in words is "five billion, one hundred twenty-one million, one hundred twenty-one thousand, four hundred twenty-four".