123170853783 has 8 divisors (see below), whose sum is σ = 164882100096. Its totient is φ = 81786755000.

The previous prime is 123170853781. The next prime is 123170853787. The reversal of 123170853783 is 387358071321.

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 123170853783 - 2¹ = 123170853781 is a prime.

It is a super-2 number, since 2×123170853783² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123170853781) 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, 81786003 + ... + 81787508.

It is an arithmetic number, because the mean of its divisors is an integer number (20610262512).

Almost surely, 2^123170853783 is an apocalyptic number.

123170853783 is a deficient number, since it is larger than the sum of its proper divisors (41711246313).

123170853783 is a wasteful number, since it uses less digits than its factorization.

123170853783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163573765.

The product of its (nonzero) digits is 846720, while the sum is 48.

The spelling of 123170853783 in words is "one hundred twenty-three billion, one hundred seventy million, eight hundred fifty-three thousand, seven hundred eighty-three".