123053545512 has 24 divisors (see below), whose sum is σ = 333270019290. Its totient is φ = 41017848480.

The previous prime is 123053545507. The next prime is 123053545553. The reversal of 123053545512 is 215545350321.

123053545512 is a `hidden beast` number, since 1 + 2 + 3 + 0 + 53 + 54 + 551 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 103924995876 + 19128549636 = 322374^2 + 138306^2 .

It is a tau number, because it is divible by the number of its divisors (24).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 854538439 + ... + 854538582.

Almost surely, 2^123053545512 is an apocalyptic number.

123053545512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123053545512 is an abundant number, since it is smaller than the sum of its proper divisors (210216473778).

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

123053545512 is a wasteful number, since it uses less digits than its factorization.

123053545512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1709077033 (or 1709077026 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

Adding to 123053545512 its reverse (215545350321), we get a palindrome (338598895833).

The spelling of 123053545512 in words is "one hundred twenty-three billion, fifty-three million, five hundred forty-five thousand, five hundred twelve".