51431433101 has 2 divisors, whose sum is σ = 51431433102. Its totient is φ = 51431433100.

The previous prime is 51431433073. The next prime is 51431433149. The reversal of 51431433101 is 10133413415.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27491298025 + 23940135076 = 165805^2 + 154726^2 .

It is a cyclic number.

It is not a de Polignac number, because 51431433101 - 2²⁶ = 51364324237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51431433181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25715716550 + 25715716551.

It is an arithmetic number, because the mean of its divisors is an integer number (25715716551).

Almost surely, 2^51431433101 is an apocalyptic number.

It is an amenable number.

51431433101 is a deficient number, since it is larger than the sum of its proper divisors (1).

51431433101 is an equidigital number, since it uses as much as digits as its factorization.

51431433101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 26.

Adding to 51431433101 its reverse (10133413415), we get a palindrome (61564846516).

The spelling of 51431433101 in words is "fifty-one billion, four hundred thirty-one million, four hundred thirty-three thousand, one hundred one".