5111212342451 has 2 divisors, whose sum is σ = 5111212342452. Its totient is φ = 5111212342450.

The previous prime is 5111212342447. The next prime is 5111212342559. The reversal of 5111212342451 is 1542432121115.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5111212342451 - 2² = 5111212342447 is a prime.

It is a super-2 number, since 2×5111212342451² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5111212342751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2555606171225 + 2555606171226.

It is an arithmetic number, because the mean of its divisors is an integer number (2555606171226).

Almost surely, 2^{5111212342451} is an apocalyptic number.

5111212342451 is a deficient number, since it is larger than the sum of its proper divisors (1).

5111212342451 is an equidigital number, since it uses as much as digits as its factorization.

5111212342451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9600, while the sum is 32.

Adding to 5111212342451 its reverse (1542432121115), we get a palindrome (6653644463566).

The spelling of 5111212342451 in words is "five trillion, one hundred eleven billion, two hundred twelve million, three hundred forty-two thousand, four hundred fifty-one".