123711447057 has 8 divisors (see below), whose sum is σ = 179943923040. Its totient is φ = 74976634560.

The previous prime is 123711447023. The next prime is 123711447073. The reversal of 123711447057 is 750744117321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 123711447057 - 2⁶ = 123711446993 is a prime.

It is a super-2 number, since 2×123711447057² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (123711447007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1874415832 + ... + 1874415897.

It is an arithmetic number, because the mean of its divisors is an integer number (22492990380).

Almost surely, 2^123711447057 is an apocalyptic number.

It is an amenable number.

123711447057 is a deficient number, since it is larger than the sum of its proper divisors (56232475983).

123711447057 is a wasteful number, since it uses less digits than its factorization.

123711447057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3748831743.

The product of its (nonzero) digits is 164640, while the sum is 42.

The spelling of 123711447057 in words is "one hundred twenty-three billion, seven hundred eleven million, four hundred forty-seven thousand, fifty-seven".