1247048123563 has 4 divisors (see below), whose sum is σ = 1360416134808. Its totient is φ = 1133680112320.

The previous prime is 1247048123549. The next prime is 1247048123567. The reversal of 1247048123563 is 3653218407421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1247048123563 - 2³⁷ = 1109609170091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1247048123567) 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 3 ways as a sum of consecutive naturals, for example, 56684005606 + ... + 56684005627.

It is an arithmetic number, because the mean of its divisors is an integer number (340104033702).

Almost surely, 2^{1247048123563} is an apocalyptic number.

1247048123563 is a deficient number, since it is larger than the sum of its proper divisors (113368011245).

1247048123563 is a wasteful number, since it uses less digits than its factorization.

1247048123563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113368011244.

The product of its (nonzero) digits is 967680, while the sum is 46.

The spelling of 1247048123563 in words is "one trillion, two hundred forty-seven billion, forty-eight million, one hundred twenty-three thousand, five hundred sixty-three".