124121121299 has 4 divisors (see below), whose sum is σ = 141852710064. Its totient is φ = 106389532536.

The previous prime is 124121121277. The next prime is 124121121353. The reversal of 124121121299 is 992121121421.

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

It is not a de Polignac number, because 124121121299 - 2²⁴ = 124104344083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124121121269) 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, 8865794372 + ... + 8865794385.

It is an arithmetic number, because the mean of its divisors is an integer number (35463177516).

Almost surely, 2^124121121299 is an apocalyptic number.

124121121299 is a deficient number, since it is larger than the sum of its proper divisors (17731588765).

124121121299 is an equidigital number, since it uses as much as digits as its factorization.

124121121299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17731588764.

The product of its digits is 5184, while the sum is 35.

The spelling of 124121121299 in words is "one hundred twenty-four billion, one hundred twenty-one million, one hundred twenty-one thousand, two hundred ninety-nine".