273405320346123 has 18 divisors (see below), whose sum is σ = 459395334187764. Its totient is φ = 156231611626104.

The previous prime is 273405320346107. The next prime is 273405320346133. The reversal of 273405320346123 is 321643023504372.

273405320346123 is a `hidden beast` number, since 2 + 7 + 3 + 4 + 0 + 5 + 3 + 20 + 3 + 4 + 612 + 3 = 666.

It is not a de Polignac number, because 273405320346123 - 2⁴ = 273405320346107 is a prime.

It is a super-2 number, since 2×273405320346123² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (273405320346133) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 309983355961 + ... + 309983356842.

Almost surely, 2^{273405320346123} is an apocalyptic number.

273405320346123 is a deficient number, since it is larger than the sum of its proper divisors (185990013841641).

273405320346123 is a wasteful number, since it uses less digits than its factorization.

273405320346123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619966712823 (or 619966712813 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 45.

The spelling of 273405320346123 in words is "two hundred seventy-three trillion, four hundred five billion, three hundred twenty million, three hundred forty-six thousand, one hundred twenty-three".