124091181697 has 4 divisors (see below), whose sum is σ = 141818493376. Its totient is φ = 106363870020.

The previous prime is 124091181691. The next prime is 124091181769. The reversal of 124091181697 is 796181190421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124091181697 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 124091181697.

It is not an unprimeable number, because it can be changed into a prime (124091181691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8863655829 + ... + 8863655842.

It is an arithmetic number, because the mean of its divisors is an integer number (35454623344).

Almost surely, 2^124091181697 is an apocalyptic number.

It is an amenable number.

124091181697 is a deficient number, since it is larger than the sum of its proper divisors (17727311679).

124091181697 is an equidigital number, since it uses as much as digits as its factorization.

124091181697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17727311678.

The product of its (nonzero) digits is 217728, while the sum is 49.

The spelling of 124091181697 in words is "one hundred twenty-four billion, ninety-one million, one hundred eighty-one thousand, six hundred ninety-seven".