5121422531 has 2 divisors, whose sum is σ = 5121422532. Its totient is φ = 5121422530.

The previous prime is 5121422503. The next prime is 5121422569. The reversal of 5121422531 is 1352241215.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5121422531 is a prime.

It is a super-2 number, since 2×5121422531² = 52457937482068891922, 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 5121422531.

It is not a weakly prime, because it can be changed into another prime (5121422731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2560711265 + 2560711266.

It is an arithmetic number, because the mean of its divisors is an integer number (2560711266).

Almost surely, 2^5121422531 is an apocalyptic number.

5121422531 is a deficient number, since it is larger than the sum of its proper divisors (1).

5121422531 is an equidigital number, since it uses as much as digits as its factorization.

5121422531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2400, while the sum is 26.

The square root of 5121422531 is about 71564.1148271953. The cubic root of 5121422531 is about 1723.7073596475.

Adding to 5121422531 its reverse (1352241215), we get a palindrome (6473663746).

The spelling of 5121422531 in words is "five billion, one hundred twenty-one million, four hundred twenty-two thousand, five hundred thirty-one".