5031240121 has 4 divisors (see below), whose sum is σ = 5064559744. Its totient is φ = 4997920500.

The previous prime is 5031240107. The next prime is 5031240157. The reversal of 5031240121 is 1210421305.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5031240121 - 2²⁵ = 4997685689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5031240101) 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 3 ways as a sum of consecutive naturals, for example, 16659585 + ... + 16659886.

It is an arithmetic number, because the mean of its divisors is an integer number (1266139936).

Almost surely, 2^5031240121 is an apocalyptic number.

It is an amenable number.

5031240121 is a deficient number, since it is larger than the sum of its proper divisors (33319623).

5031240121 is a wasteful number, since it uses less digits than its factorization.

5031240121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33319622.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 5031240121 is about 70931.2351577216. The cubic root of 5031240121 is about 1713.5298789354.

Adding to 5031240121 its reverse (1210421305), we get a palindrome (6241661426).

The spelling of 5031240121 in words is "five billion, thirty-one million, two hundred forty thousand, one hundred twenty-one".