51241145231 has 2 divisors, whose sum is σ = 51241145232. Its totient is φ = 51241145230.

The previous prime is 51241145191. The next prime is 51241145237. The reversal of 51241145231 is 13254114215.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51241145231 - 2⁶ = 51241145167 is a prime.

It is a super-2 number, since 2×51241145231² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51241145194 and 51241145203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51241145237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25620572615 + 25620572616.

It is an arithmetic number, because the mean of its divisors is an integer number (25620572616).

Almost surely, 2^51241145231 is an apocalyptic number.

51241145231 is a deficient number, since it is larger than the sum of its proper divisors (1).

51241145231 is an equidigital number, since it uses as much as digits as its factorization.

51241145231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4800, while the sum is 29.

Adding to 51241145231 its reverse (13254114215), we get a palindrome (64495259446).

The spelling of 51241145231 in words is "fifty-one billion, two hundred forty-one million, one hundred forty-five thousand, two hundred thirty-one".