123298477047 has 16 divisors (see below), whose sum is σ = 193409376480. Its totient is φ = 77363750016.

The previous prime is 123298476991. The next prime is 123298477061. The reversal of 123298477047 is 740774892321.

123298477047 is a `hidden beast` number, since 12 + 32 + 98 + 477 + 0 + 47 = 666.

It is not a de Polignac number, because 123298477047 - 2¹² = 123298472951 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123298476984 and 123298477002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123298477097) 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 15 ways as a sum of consecutive naturals, for example, 134311608 + ... + 134312525.

It is an arithmetic number, because the mean of its divisors is an integer number (12088086030).

Almost surely, 2^123298477047 is an apocalyptic number.

123298477047 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

123298477047 is a deficient number, since it is larger than the sum of its proper divisors (70110899433).

123298477047 is a wasteful number, since it uses less digits than its factorization.

123298477047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268624159 (or 268624153 counting only the distinct ones).

The product of its (nonzero) digits is 4741632, while the sum is 54.

The spelling of 123298477047 in words is "one hundred twenty-three billion, two hundred ninety-eight million, four hundred seventy-seven thousand, forty-seven".