123342443005 has 8 divisors (see below), whose sum is σ = 148021060824. Its totient is φ = 98667201600.

The previous prime is 123342442987. The next prime is 123342443009. The reversal of 123342443005 is 500344243321.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8256629956 + 115085813049 = 90866^2 + 339243^2 .

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

It is not a de Polignac number, because 123342443005 - 2³³ = 114752508413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123342443009) 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, 763026 + ... + 910435.

It is an arithmetic number, because the mean of its divisors is an integer number (18502632603).

Almost surely, 2^123342443005 is an apocalyptic number.

It is an amenable number.

123342443005 is a deficient number, since it is larger than the sum of its proper divisors (24678617819).

123342443005 is a wasteful number, since it uses less digits than its factorization.

123342443005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1688207.

The product of its (nonzero) digits is 34560, while the sum is 31.

Adding to 123342443005 its reverse (500344243321), we get a palindrome (623686686326).

The spelling of 123342443005 in words is "one hundred twenty-three billion, three hundred forty-two million, four hundred forty-three thousand, five".