123022340506155 has 16 divisors (see below), whose sum is σ = 196850934236160. Its totient is φ = 65606851794528.

The previous prime is 123022340506151. The next prime is 123022340506159. The reversal of 123022340506155 is 551605043220321.

It is an interprime number because it is at equal distance from previous prime (123022340506151) and next prime (123022340506159).

It is not a de Polignac number, because 123022340506155 - 2² = 123022340506151 is a prime.

It is a super-3 number, since 3×123022340506155³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (123022340506151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 316245517 + ... + 316634286.

It is an arithmetic number, because the mean of its divisors is an integer number (12303183389760).

Almost surely, 2^{123022340506155} is an apocalyptic number.

123022340506155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

123022340506155 is a deficient number, since it is larger than the sum of its proper divisors (73828593730005).

123022340506155 is a wasteful number, since it uses less digits than its factorization.

123022340506155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632892770.

The product of its (nonzero) digits is 216000, while the sum is 39.

Adding to 123022340506155 its reverse (551605043220321), we get a palindrome (674627383726476).

The spelling of 123022340506155 in words is "one hundred twenty-three trillion, twenty-two billion, three hundred forty million, five hundred six thousand, one hundred fifty-five".