123341681 has 8 divisors (see below), whose sum is σ = 130694760. Its totient is φ = 115999488.

The previous prime is 123341657. The next prime is 123341689. The reversal of 123341681 is 186143321.

It can be written as a sum of positive squares in 4 ways, for example, as 37945600 + 85396081 = 6160^2 + 9241^2 .

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 123341681 - 2²⁶ = 56232817 is a prime.

It is a super-2 number, since 2×123341681² = 30426340543811522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123341689) 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, 39095 + ... + 42131.

It is an arithmetic number, because the mean of its divisors is an integer number (16336845).

Almost surely, 2^123341681 is an apocalyptic number.

It is an amenable number.

123341681 is a deficient number, since it is larger than the sum of its proper divisors (7353079).

123341681 is a wasteful number, since it uses less digits than its factorization.

123341681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5443.

The product of its digits is 3456, while the sum is 29.

The square root of 123341681 is about 11105.9299925760. The cubic root of 123341681 is about 497.7790574349.

The spelling of 123341681 in words is "one hundred twenty-three million, three hundred forty-one thousand, six hundred eighty-one".