123030473049 has 63 divisors (see below), whose sum is σ = 202926837967. Its totient is φ = 74500786800.

The previous prime is 123030473009. The next prime is 123030473081. The reversal of 123030473049 is 940374030321.

The square root of 123030473049 is 350757.

It is a perfect power (a square), and thus also a powerful number.

123030473049 is a `hidden beast` number, since 1 + 2 + 303 + 0 + 47 + 304 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 112833512649 + 10196960400 = 335907^2 + 100980^2 .

It is not a de Polignac number, because 123030473049 - 2⁷ = 123030472921 is a prime.

It is a super-3 number, since 3×123030473049³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (123030473009) by changing a digit.

It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 104174239 + ... + 104175419.

Almost surely, 2^123030473049 is an apocalyptic number.

123030473049 is the 350757-th square number.

123030473049 is the 175379-th centered octagonal number.

It is an amenable number.

123030473049 is a deficient number, since it is larger than the sum of its proper divisors (79896364918).

123030473049 is an frugal number, since it uses more digits than its factorization.

123030473049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2402 (or 1195 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 36.

Multiplying 123030473049 by its sum of digits (36), we get a square (4429097029764 = 2104542²).

The spelling of 123030473049 in words is "one hundred twenty-three billion, thirty million, four hundred seventy-three thousand, forty-nine".