5121422731 has 2 divisors, whose sum is σ = 5121422732. Its totient is φ = 5121422730.

The previous prime is 5121422687. The next prime is 5121422741. The reversal of 5121422731 is 1372241215.

5121422731 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5121422731 - 2¹⁹ = 5120898443 is a prime.

It is a super-2 number, since 2×5121422731² = 52457941579206996722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 5121422731.

It is not a weakly prime, because it can be changed into another prime (5121422741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2560711365 + 2560711366.

It is an arithmetic number, because the mean of its divisors is an integer number (2560711366).

Almost surely, 2^5121422731 is an apocalyptic number.

5121422731 is a deficient number, since it is larger than the sum of its proper divisors (1).

5121422731 is an equidigital number, since it uses as much as digits as its factorization.

5121422731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3360, while the sum is 28.

The square root of 5121422731 is about 71564.1162245437. The cubic root of 5121422731 is about 1723.7073820854.

Adding to 5121422731 its reverse (1372241215), we get a palindrome (6493663946).

It can be divided in two parts, 5 and 121422731, that added together give a triangular number (121422736 = T₁₅₅₈₃).

The spelling of 5121422731 in words is "five billion, one hundred twenty-one million, four hundred twenty-two thousand, seven hundred thirty-one".