51144223101 has 16 divisors (see below), whose sum is σ = 69360192000. Its totient is φ = 33512403248.

The previous prime is 51144223043. The next prime is 51144223159. The reversal of 51144223101 is 10132244115.

It is an interprime number because it is at equal distance from previous prime (51144223043) and next prime (51144223159).

It is a cyclic number.

It is not a de Polignac number, because 51144223101 - 2⁶ = 51144223037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51144223301) 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 in 15 ways as a sum of consecutive naturals, for example, 1146130 + ... + 1189916.

It is an arithmetic number, because the mean of its divisors is an integer number (4335012000).

Almost surely, 2^51144223101 is an apocalyptic number.

It is an amenable number.

51144223101 is a deficient number, since it is larger than the sum of its proper divisors (18215968899).

51144223101 is a wasteful number, since it uses less digits than its factorization.

51144223101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50448.

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 51144223101 its reverse (10132244115), we get a palindrome (61276467216).

The spelling of 51144223101 in words is "fifty-one billion, one hundred forty-four million, two hundred twenty-three thousand, one hundred one".