650434400121 has 16 divisors (see below), whose sum is σ = 987220592640. Its totient is φ = 377063419920.

The previous prime is 650434400113. The next prime is 650434400129. The reversal of 650434400121 is 121004434056.

It is an interprime number because it is at equal distance from previous prime (650434400113) and next prime (650434400129).

It is not a de Polignac number, because 650434400121 - 2³ = 650434400113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (650434400129) 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, 428480401 + ... + 428481918.

It is an arithmetic number, because the mean of its divisors is an integer number (61701287040).

Almost surely, 2^650434400121 is an apocalyptic number.

It is an amenable number.

650434400121 is a deficient number, since it is larger than the sum of its proper divisors (336786192519).

650434400121 is a wasteful number, since it uses less digits than its factorization.

650434400121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 856962356.

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 650434400121 its reverse (121004434056), we get a palindrome (771438834177).

The spelling of 650434400121 in words is "six hundred fifty billion, four hundred thirty-four million, four hundred thousand, one hundred twenty-one".