51400211011121 has 8 divisors (see below), whose sum is σ = 60768722377920. Its totient is φ = 42538105664208.

The previous prime is 51400211011099. The next prime is 51400211011129. The reversal of 51400211011121 is 12111011200415.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-51400211011121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51400211011093 and 51400211011102.

It is not an unprimeable number, because it can be changed into a prime (51400211011129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126601504751 + ... + 126601505156.

It is an arithmetic number, because the mean of its divisors is an integer number (7596090297240).

Almost surely, 2^{51400211011121} is an apocalyptic number.

It is an amenable number.

51400211011121 is a deficient number, since it is larger than the sum of its proper divisors (9368511366799).

51400211011121 is a wasteful number, since it uses less digits than its factorization.

51400211011121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253203009943.

The product of its (nonzero) digits is 80, while the sum is 20.

Adding to 51400211011121 its reverse (12111011200415), we get a palindrome (63511222211536).

The spelling of 51400211011121 in words is "fifty-one trillion, four hundred billion, two hundred eleven million, eleven thousand, one hundred twenty-one".