51043230432511 has 2 divisors, whose sum is σ = 51043230432512. Its totient is φ = 51043230432510.

The previous prime is 51043230432499. The next prime is 51043230432517. The reversal of 51043230432511 is 11523403234015.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51043230432511 - 2²³ = 51043222043903 is a prime.

It is a super-2 number, since 2×51043230432511² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51043230432517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25521615216255 + 25521615216256.

It is an arithmetic number, because the mean of its divisors is an integer number (25521615216256).

Almost surely, 2^{51043230432511} is an apocalyptic number.

51043230432511 is a deficient number, since it is larger than the sum of its proper divisors (1).

51043230432511 is an equidigital number, since it uses as much as digits as its factorization.

51043230432511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 34.

Adding to 51043230432511 its reverse (11523403234015), we get a palindrome (62566633666526).

The spelling of 51043230432511 in words is "fifty-one trillion, forty-three billion, two hundred thirty million, four hundred thirty-two thousand, five hundred eleven".