51113433211 has 2 divisors, whose sum is σ = 51113433212. Its totient is φ = 51113433210.

The previous prime is 51113433193. The next prime is 51113433257. The reversal of 51113433211 is 11233431115.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51113433211 - 2¹³ = 51113425019 is a prime.

It is a super-2 number, since 2×51113433211² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51113433011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25556716605 + 25556716606.

It is an arithmetic number, because the mean of its divisors is an integer number (25556716606).

Almost surely, 2^51113433211 is an apocalyptic number.

51113433211 is a deficient number, since it is larger than the sum of its proper divisors (1).

51113433211 is an equidigital number, since it uses as much as digits as its factorization.

51113433211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 25.

Adding to 51113433211 its reverse (11233431115), we get a palindrome (62346864326).

The spelling of 51113433211 in words is "fifty-one billion, one hundred thirteen million, four hundred thirty-three thousand, two hundred eleven".