634363211316121 has 8 divisors (see below), whose sum is σ = 725453356932864. Its totient is φ = 543389773128000.

The previous prime is 634363211316089. The next prime is 634363211316151. The reversal of 634363211316121 is 121613112363436.

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

It is a cyclic number.

It is not a de Polignac number, because 634363211316121 - 2⁵ = 634363211316089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (634363211316151) 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, 29176845505 + ... + 29176867246.

It is an arithmetic number, because the mean of its divisors is an integer number (90681669616608).

Almost surely, 2^{634363211316121} is an apocalyptic number.

It is an amenable number.

634363211316121 is a deficient number, since it is larger than the sum of its proper divisors (91090145616743).

634363211316121 is a wasteful number, since it uses less digits than its factorization.

634363211316121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58353714311.

The product of its digits is 279936, while the sum is 43.

Adding to 634363211316121 its reverse (121613112363436), we get a palindrome (755976323679557).

The spelling of 634363211316121 in words is "six hundred thirty-four trillion, three hundred sixty-three billion, two hundred eleven million, three hundred sixteen thousand, one hundred twenty-one".