123155278494335 has 32 divisors (see below), whose sum is σ = 149560586260800. Its totient is φ = 97346545873920.

The previous prime is 123155278494299. The next prime is 123155278494349. The reversal of 123155278494335 is 533494872551321.

It is a happy number.

It is not a de Polignac number, because 123155278494335 - 2⁶ = 123155278494271 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1326243227 + ... + 1326336083.

It is an arithmetic number, because the mean of its divisors is an integer number (4673768320650).

Almost surely, 2^{123155278494335} is an apocalyptic number.

123155278494335 is a deficient number, since it is larger than the sum of its proper divisors (26405307766465).

123155278494335 is a wasteful number, since it uses less digits than its factorization.

123155278494335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99771.

The product of its digits is 108864000, while the sum is 62.

The spelling of 123155278494335 in words is "one hundred twenty-three trillion, one hundred fifty-five billion, two hundred seventy-eight million, four hundred ninety-four thousand, three hundred thirty-five".