123545551343341 has 4 divisors (see below), whose sum is σ = 123556876457500. Its totient is φ = 123534226229184.

The previous prime is 123545551343281. The next prime is 123545551343441. The reversal of 123545551343341 is 143343155545321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 42185674502500 + 81359876840841 = 6495050^2 + 9019971^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123545551343341 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 (123545551343441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5662540716 + ... + 5662562533.

It is an arithmetic number, because the mean of its divisors is an integer number (30889219114375).

Almost surely, 2^{123545551343341} is an apocalyptic number.

It is an amenable number.

123545551343341 is a deficient number, since it is larger than the sum of its proper divisors (11325114159).

123545551343341 is a wasteful number, since it uses less digits than its factorization.

123545551343341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11325114158.

The product of its digits is 6480000, while the sum is 49.

The spelling of 123545551343341 in words is "one hundred twenty-three trillion, five hundred forty-five billion, five hundred fifty-one million, three hundred forty-three thousand, three hundred forty-one".