123179503897 has 8 divisors (see below), whose sum is σ = 126545660936. Its totient is φ = 119815293312.

The previous prime is 123179503861. The next prime is 123179503913. The reversal of 123179503897 is 798305971321.

It can be written as a sum of positive squares in 4 ways, for example, as 68215514761 + 54963989136 = 261181^2 + 234444^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 123179503897 - 2²³ = 123171115289 is a prime.

It is a super-2 number, since 2×123179503897² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123179503847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 357858 + ... + 611899.

It is an arithmetic number, because the mean of its divisors is an integer number (15818207617).

Almost surely, 2^123179503897 is an apocalyptic number.

It is an amenable number.

123179503897 is a deficient number, since it is larger than the sum of its proper divisors (3366157039).

123179503897 is an equidigital number, since it uses as much as digits as its factorization.

123179503897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973227.

The product of its (nonzero) digits is 2857680, while the sum is 55.

The spelling of 123179503897 in words is "one hundred twenty-three billion, one hundred seventy-nine million, five hundred three thousand, eight hundred ninety-seven".