51061011101 has 4 divisors (see below), whose sum is σ = 51061927872. Its totient is φ = 51060094332.

The previous prime is 51061011097. The next prime is 51061011107. The reversal of 51061011101 is 10111016015.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10111016015 = 5 ⋅2022203203.

It is a cyclic number.

It is not a de Polignac number, because 51061011101 - 2² = 51061011097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51061011101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51061011107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 369035 + ... + 488168.

It is an arithmetic number, because the mean of its divisors is an integer number (12765481968).

Almost surely, 2^51061011101 is an apocalyptic number.

It is an amenable number.

51061011101 is a deficient number, since it is larger than the sum of its proper divisors (916771).

51061011101 is an equidigital number, since it uses as much as digits as its factorization.

51061011101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916770.

The product of its (nonzero) digits is 30, while the sum is 17.

Adding to 51061011101 its reverse (10111016015), we get a palindrome (61172027116).

The spelling of 51061011101 in words is "fifty-one billion, sixty-one million, eleven thousand, one hundred one".