123052456215 has 24 divisors (see below), whose sum is σ = 229697919360. Its totient is φ = 60579670464.

The previous prime is 123052456213. The next prime is 123052456229. The reversal of 123052456215 is 512654250321.

123052456215 is a `hidden beast` number, since 1 + 2 + 3 + 0 + 5 + 24 + 5 + 621 + 5 = 666.

It is not a de Polignac number, because 123052456215 - 2¹ = 123052456213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123052456215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123052456213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 105172455 + ... + 105173624.

It is an arithmetic number, because the mean of its divisors is an integer number (9570746640).

Almost surely, 2^123052456215 is an apocalyptic number.

123052456215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

123052456215 is a deficient number, since it is larger than the sum of its proper divisors (106645463145).

123052456215 is a wasteful number, since it uses less digits than its factorization.

123052456215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210346103 (or 210346100 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The spelling of 123052456215 in words is "one hundred twenty-three billion, fifty-two million, four hundred fifty-six thousand, two hundred fifteen".