634170112123 has 8 divisors (see below), whose sum is σ = 647917300800. Its totient is φ = 620433515520.

The previous prime is 634170112049. The next prime is 634170112153. The reversal of 634170112123 is 321211071436.

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 634170112123 - 2³³ = 625580177531 is a prime.

It is a super-2 number, since 2×634170112123² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (634170112153) 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, 2526918 + ... + 2766523.

It is an arithmetic number, because the mean of its divisors is an integer number (80989662600).

Almost surely, 2^634170112123 is an apocalyptic number.

634170112123 is a deficient number, since it is larger than the sum of its proper divisors (13747188677).

634170112123 is a wasteful number, since it uses less digits than its factorization.

634170112123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5296037.

The product of its (nonzero) digits is 6048, while the sum is 31.

Adding to 634170112123 its reverse (321211071436), we get a palindrome (955381183559).

The spelling of 634170112123 in words is "six hundred thirty-four billion, one hundred seventy million, one hundred twelve thousand, one hundred twenty-three".