171213121124 has 24 divisors (see below), whose sum is σ = 310143912960. Its totient is φ = 82637011296.

The previous prime is 171213121069. The next prime is 171213121153. The reversal of 171213121124 is 421121312171.

It is a junction number, because it is equal to n+sod(n) for n = 171213121093 and 171213121102.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4535714 + ... + 4573305.

It is an arithmetic number, because the mean of its divisors is an integer number (12922663040).

Almost surely, 2^171213121124 is an apocalyptic number.

It is an amenable number.

171213121124 is a deficient number, since it is larger than the sum of its proper divisors (138930791836).

171213121124 is a wasteful number, since it uses less digits than its factorization.

171213121124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9109187 (or 9109185 counting only the distinct ones).

The product of its digits is 672, while the sum is 26.

Adding to 171213121124 its reverse (421121312171), we get a palindrome (592334433295).

The spelling of 171213121124 in words is "one hundred seventy-one billion, two hundred thirteen million, one hundred twenty-one thousand, one hundred twenty-four".