51224124313 has 2 divisors, whose sum is σ = 51224124314. Its totient is φ = 51224124312.

The previous prime is 51224124197. The next prime is 51224124331. The reversal of 51224124313 is 31342142215.

Together with next prime (51224124331) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46273172544 + 4950951769 = 215112^2 + 70363^2 .

It is a cyclic number.

It is not a de Polignac number, because 51224124313 - 2²¹ = 51222027161 is a prime.

It is not a weakly prime, because it can be changed into another prime (51224124373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25612062156 + 25612062157.

It is an arithmetic number, because the mean of its divisors is an integer number (25612062157).

Almost surely, 2^51224124313 is an apocalyptic number.

It is an amenable number.

51224124313 is a deficient number, since it is larger than the sum of its proper divisors (1).

51224124313 is an equidigital number, since it uses as much as digits as its factorization.

51224124313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 28.

Adding to 51224124313 its reverse (31342142215), we get a palindrome (82566266528).

The spelling of 51224124313 in words is "fifty-one billion, two hundred twenty-four million, one hundred twenty-four thousand, three hundred thirteen".