122031123099 has 4 divisors (see below), whose sum is σ = 162708164136. Its totient is φ = 81354082064.

The previous prime is 122031123079. The next prime is 122031123143. The reversal of 122031123099 is 990321130221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 990321130221 = 3 ⋅330107043407.

It is a cyclic number.

It is not a de Polignac number, because 122031123099 - 2⁷ = 122031122971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122031123079) 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, 20338520514 + ... + 20338520519.

It is an arithmetic number, because the mean of its divisors is an integer number (40677041034).

Almost surely, 2^122031123099 is an apocalyptic number.

122031123099 is a deficient number, since it is larger than the sum of its proper divisors (40677041037).

122031123099 is an equidigital number, since it uses as much as digits as its factorization.

122031123099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40677041036.

The product of its (nonzero) digits is 5832, while the sum is 33.

The spelling of 122031123099 in words is "one hundred twenty-two billion, thirty-one million, one hundred twenty-three thousand, ninety-nine".