51650102121 has 32 divisors (see below), whose sum is σ = 71247955968. Its totient is φ = 33262703040.

The previous prime is 51650102111. The next prime is 51650102129. The reversal of 51650102121 is 12120105615.

It is not a de Polignac number, because 51650102121 - 2⁶ = 51650102057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51650102091 and 51650102100.

It is not an unprimeable number, because it can be changed into a prime (51650102129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21192915 + ... + 21195351.

It is an arithmetic number, because the mean of its divisors is an integer number (2226498624).

Almost surely, 2^51650102121 is an apocalyptic number.

It is an amenable number.

51650102121 is a deficient number, since it is larger than the sum of its proper divisors (19597853847).

51650102121 is a wasteful number, since it uses less digits than its factorization.

51650102121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4381.

The product of its (nonzero) digits is 600, while the sum is 24.

Adding to 51650102121 its reverse (12120105615), we get a palindrome (63770207736).

The spelling of 51650102121 in words is "fifty-one billion, six hundred fifty million, one hundred two thousand, one hundred twenty-one".