123545215332 has 144 divisors (see below), whose sum is σ = 403775404032. Its totient is φ = 32089646880.

The previous prime is 123545215309. The next prime is 123545215333. The reversal of 123545215332 is 233512545321.

123545215332 is a `hidden beast` number, since 1 + 2 + 3 + 54 + 521 + 53 + 32 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (123545215333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 750508 + ... + 900195.

Almost surely, 2^123545215332 is an apocalyptic number.

123545215332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123545215332 is an abundant number, since it is smaller than the sum of its proper divisors (280230188700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123545215332 is a wasteful number, since it uses less digits than its factorization.

123545215332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1650740 (or 1650726 counting only the distinct ones).

The product of its digits is 108000, while the sum is 36.

The spelling of 123545215332 in words is "one hundred twenty-three billion, five hundred forty-five million, two hundred fifteen thousand, three hundred thirty-two".