123055381 has 8 divisors (see below), whose sum is σ = 133999200. Its totient is φ = 112558320.

The previous prime is 123055369. The next prime is 123055393. The reversal of 123055381 is 183550321.

It is an interprime number because it is at equal distance from previous prime (123055369) and next prime (123055393).

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 123055381 - 2¹⁹ = 122531093 is a prime.

It is a super-2 number, since 2×123055381² = 30285253586110322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123055321) 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, 111115 + ... + 112216.

It is an arithmetic number, because the mean of its divisors is an integer number (16749900).

Almost surely, 2^123055381 is an apocalyptic number.

It is an amenable number.

123055381 is a deficient number, since it is larger than the sum of its proper divisors (10943819).

123055381 is a wasteful number, since it uses less digits than its factorization.

123055381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223379.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 123055381 is about 11093.0329937308. The cubic root of 123055381 is about 497.3936117551.

The spelling of 123055381 in words is "one hundred twenty-three million, fifty-five thousand, three hundred eighty-one".