171223367242138 has 8 divisors (see below), whose sum is σ = 262299626413632. Its totient is φ = 83790158437596.

The previous prime is 171223367242121. The next prime is 171223367242243. The reversal of 171223367242138 is 831242763322171.

171223367242138 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×171223367242138² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 910762591620 + ... + 910762591807.

It is an arithmetic number, because the mean of its divisors is an integer number (32787453301704).

Almost surely, 2^{171223367242138} is an apocalyptic number.

171223367242138 is a deficient number, since it is larger than the sum of its proper divisors (91076259171494).

171223367242138 is a wasteful number, since it uses less digits than its factorization.

171223367242138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1821525183476.

The product of its digits is 4064256, while the sum is 52.

The spelling of 171223367242138 in words is "one hundred seventy-one trillion, two hundred twenty-three billion, three hundred sixty-seven million, two hundred forty-two thousand, one hundred thirty-eight".